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BÀI 2:GIẢI CÁC PHƯƠNG TRÌNH SAUa) left(9x^2-4right)left(x+1right)left(3x+2right)left(x^2-1right)b) left(x-1right)^2-1+x^2left(1-xright)left(x+3right)c) left(x^2-1right)left(x+2right)left(x-3right)left(x-1right)left(x^2-4right)left(x+5right)d) x^4+x^3+x+10e)x^3-7x+60f) x^4-4x^3+12x-90g) x^5-5x^3+40h) x^4-4x^3+3x^2+4x-40
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BÀI 2:GIẢI CÁC PHƯƠNG TRÌNH SAU
a) \(\left(9x^2-4\right)\left(x+1\right)=\left(3x+2\right)\left(x^2-1\right)\)
b) \(\left(x-1\right)^2-1+x^2=\left(1-x\right)\left(x+3\right)\)
c) \(\left(x^2-1\right)\left(x+2\right)\left(x-3\right)=\left(x-1\right)\left(x^2-4\right)\left(x+5\right)\)
d) \(x^4+x^3+x+1=0\)
e)\(x^3-7x+6=0\)
f) \(x^4-4x^3+12x-9=0\)
g) \(x^5-5x^3+4=0\)
h) \(x^4-4x^3+3x^2+4x-4=0\)
giải phương trình
a) \(x^4-4x^3-19x^2+106x-120=0\)
b)\(4x^4+12x^3+5x^2-6x-15=0\)
c)\(\left(x+1\right)\left(x+2\right)\left(x+4\right)\left(x+5\right)=40\)
Giải phương trình
\(\left(x-1\right)^2-1+x^2=\left(1-x\right)\left(x+3\right)\)
\(\left(x^2-1\right)\left(x+2\right)\left(x-3\right)=\left(x-1\right)\left(x^2-4\right)\left(x+5\right)\)
\(x^4-4x^3+3x^2+4x-4=0\)
\(x^4-4x^3+12x-9=0\)
BÀI 6 tìm x1,2xleft(x-5right)-left(3x+2x^2right)0 2,xleft(5-2xright)+2xleft(x-1right)133,2x^3left(2x-3right)-x^2left(4x^2-6x+2right)0 4,5xleft(x-1right)-left(x+2right)left(5x-7right)65,6x^2-left(2x-3right)left(3x+2right)1 6,2xleft(1-xright)+59-2x^2
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BÀI 6 tìm x
1,\(2x\left(x-5\right)-\left(3x+2x^2\right)=0\) 2,\(x\left(5-2x\right)+2x\left(x-1\right)=13\)
3,\(2x^3\left(2x-3\right)-x^2\left(4x^2-6x+2\right)=0\) 4,\(5x\left(x-1\right)-\left(x+2\right)\left(5x-7\right)=6\)
5,\(6x^2-\left(2x-3\right)\left(3x+2\right)=1\) 6,\(2x\left(1-x\right)+5=9-2x^2\)
Tìm x 1) x^2-left(x-1right).left(x+1right)02) 5x^3+3x^2+3x+14x^33) x^3+x^204) 2x^3-12x^2+18x05)5x^2-4.left(x^2-2x+1right)+2006)5x.left(x-3right)+7x-2107)2x^3-50x08) left(4x-1right)^2-9.left(x+2right)^209) 3.left(x-2right)^2-x+2010) 9x^2+6x-80
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Tìm x
1) \(x^2-\left(x-1\right).\left(x+1\right)=0\)
2) \(5x^3+3x^2+3x+1=4x^3\)
3) \(x^3+x^2=0\)
4) \(2x^3-12x^2+18x=0\)
5)\(5x^2-4.\left(x^2-2x+1\right)+20=0\)
6)\(5x.\left(x-3\right)+7x-21=0\)
7)\(2x^3-50x=0\)
8) \(\left(4x-1\right)^2-9.\left(x+2\right)^2=0\)
9) \(3.\left(x-2\right)^2-x+2=0\)
10) \(9x^2+6x-8=0\)
BÀI 1: GIẢI CÁC PHƯƠNG TRÌNH SAUa) left(2x-1right)^249b) left(5x-3right)^2-left(4x-7right)^20c) left(2x+7right)^2-9left(x+3right)^2d) left(x+2right)^29left(x^2-4x+4right)e) 4left(2x+7right)^2-9left(x+3right)^20f) left(5x^2-2x+10right)^2left(3x^2+10x-8right)^2
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BÀI 1: GIẢI CÁC PHƯƠNG TRÌNH SAU
a) \(\left(2x-1\right)^2=49\)
b) \(\left(5x-3\right)^2-\left(4x-7\right)^2=0\)
c) \(\left(2x+7\right)^2-9\left(x+3\right)^2\)
d) \(\left(x+2\right)^2=9\left(x^2-4x+4\right)\)
e) \(4\left(2x+7\right)^2-9\left(x+3\right)^2=0\)
f) \(\left(5x^2-2x+10\right)^2=\left(3x^2+10x-8\right)^2\)
bài 1: phân tích đa thức thành nhân tử
a,2x+10y
b,x\(^2+4x+4\)
c,\(x^2-y^2+10y-25\)
bài 2 tìm x, biết
a,\(x^2-3x+x-3=0\)
b,\(2x\left(x-3\right)-\dfrac{1}{2}\left(4x^2-3\right)=0\)
c,\(x^2-\left(x-3\right)\left(2x-5\right)=9\)
Bài 1 ) Tìm x1) 16^2-9.left(x+1right)^202) x^2.left(x-2000right)x-20003)x^2-7x+1004) x^3-2x^3-4x-405)x^3-4x^2+12x-2-306) x^3+3x^2-407)left(2x^2+xright)^2-4.left(2x^2+xright)+308) 2x^3-3x^2+3x-109) 9.left(x-2right)^2-25.left(x+4right)^20
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Bài 1 ) Tìm x
1) \(16^2-9.\left(x+1\right)^2=0\)
2) \(x^2.\left(x-2000\right)=x-2000\)
3)\(x^2-7x+10=0\)
4) \(x^3-2x^3-4x-4=0\)
5)\(x^3-4x^2+12x-2-3=0\)
6) \(x^3+3x^2-4=0\)
7)\(\left(2x^2+x\right)^2-4.\left(2x^2+x\right)+3=0\)
8) \(2x^3-3x^2+3x-1=0\)
9) \(9.\left(x-2\right)^2-25.\left(x+4\right)^2=0\)
21 tháng 12 2023 lúc 18:04
Bài 1: Phân tích đa thức thành nhân tử:1) 3x^3y^2-6xy2) left(x-2yright).left(x+3yright)-2.left(x-2yright)3) left(3x-1right).left(x-2yright)-5x.left(2y-xright)4) x^2-y^2-6y-95) left(3x-yright)^2-4y^26) 4x^2-9y^2-4x+1 8) x^2y-xy^2-2x+2y9) x^2-y^2-2x+2yBài 2: Tìm x:1) left(2x-1right)^2-4.left(2x-1right)02) 9x^3-x03) left(3-2xright)^2-2.left(2x-3right)04) left(2x-5right)left(x+5right)-10x+250
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Bài 1: Phân tích đa thức thành nhân tử:
1) \(3x^3y^2-6xy\)
2) \(\left(x-2y\right).\left(x+3y\right)-2.\left(x-2y\right)\)
3) \(\left(3x-1\right).\left(x-2y\right)-5x.\left(2y-x\right)\)
4) \(x^2-y^2-6y-9\)
5) \(\left(3x-y\right)^2-4y^2\)
6) \(4x^2-9y^2-4x+1\)
8) \(x^2y-xy^2-2x+2y\)
9) \(x^2-y^2-2x+2y\)
Bài 2: Tìm x:
1) \(\left(2x-1\right)^2-4.\left(2x-1\right)=0\)
2) \(9x^3-x=0\)
3) \(\left(3-2x\right)^2-2.\left(2x-3\right)=0\)
4) \(\left(2x-5\right)\left(x+5\right)-10x+25=0\)