Các câu hỏi tương tự
Tìm x biết:
a) \(3x^2-4x=0\). b) \(\left(x+3\right)\left(x-1\right)+2x\left(x+3\right)=0\).
c) \(9x^2+6x+1=0\). d) \(x^2-4x=4\).
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,\(2x\left(1-x\right)+5=9-2x^2\)
Giải các phương trình sau:a) left(x^2+4x+8right)^2+3xleft(x^2+4x+8right)+2x^20b)left(6x+7right)^2left(3x+4right)left(x+1right)6c) left(x-2right)^4+left(x-6right)^482d) 2x^4-5x^3+6x^2-5x+20e) 2x^4+x^3-6x^2+x+20f) x^4+2x^3+4x^2+2x+10đố ai giải được hết!!
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Giải các phương trình sau:
a) \(\left(x^2+4x+8\right)^2+3x\left(x^2+4x+8\right)+2x^2=0\)
b)\(\left(6x+7\right)^2\left(3x+4\right)\left(x+1\right)=6\)
c) \(\left(x-2\right)^4+\left(x-6\right)^4=82\)
d) \(2x^4-5x^3+6x^2-5x+2=0\)
e) \(2x^4+x^3-6x^2+x+2=0\)
f) \(x^4+2x^3+4x^2+2x+1=0\)
đố ai giải được hết!!
5 tháng 10 2021 lúc 20:58
a) làm tính chia
\(\left[5\left(x-y\right)^4-3\left(x-y\right)^3+4\left(x-y\right)^2\right]:\left(y-x\right)^2\)
b) tìm \(x\)
\(\left(4x^4-3x^3\right):\left(-x^3\right)+\left(15x^2+6x\right):3x=0\)
ghi chú: đừng làm tắt được ko ạ?
Tìm x, biếta,left(x^2+2xright)^2-2x^2-4x3b,left(x+frac{1}{2}right)^2-left(x+frac{1}{2}right)left(x+6right)8c,left(x+3right)^2-left(x+2right)left(x-2right)4x+17d,left(x-3right)left(x^2+3x+9right)-xleft(x^2-4right)1e,3x^2+7x10g,left(3x+5right)left(2x-1right)-6xleft(x+2right)xh,2left(x+3right)-x^2-3x0i,x^3-5x^2-14x0
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Tìm x, biết
a,\(\left(x^2+2x\right)^2-2x^2-4x=\)3
b,\(\left(x+\frac{1}{2}\right)^2-\left(x+\frac{1}{2}\right)\left(x+6\right)=8\)
c,\(\left(x+3\right)^2-\left(x+2\right)\left(x-2\right)=4x+17\)
d,\(\left(x-3\right)\left(x^2+3x+9\right)-x\left(x^2-4\right)=1\)
e,\(3x^2+7x=10\)
g,\(\left(3x+5\right)\left(2x-1\right)-6x\left(x+2\right)=x\)
h,\(2\left(x+3\right)-x^2-3x=0\)
i,\(x^3-5x^2-14x=0\)
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) \(9x^2+6x-8=0\)
giải các pt
\(a,\frac{2x-13}{2x-16}+\frac{2\left(x-6\right)}{x-8}=\frac{7}{8}+\frac{2\left(5x-39\right)}{3x-24}\)
\(b,x\left(x-2\right)\left(x-1\right)\left(x+1\right)=24\)
\(c,x^4+2x^3+5x^2+4x-12=0\)
Tìm x biết:
a) \(\left(x+3\right)^2\left(x-2\right)^2=2x\)
b) \(7x\left(x-2\right)=\left(x-2\right)\)
c) \(8x^3-12x^2+6x-1=0\)
d) \(4x^2-9-x\left(2x-3\right)=0\)
e) \(x^3+5x^2+9x=-45\)
f) \(x^3-6x^2-x+30=0\)
Giải các pt sau
\(x^2+\frac{2x}{x-1}=8\)
\(\left(4x+1\right)\left(12x-1\right)\left(3x+2\right)\left(x+1\right)\)=4
\(\left(x^2-1\right)\left(x+3\right)\left(x+5\right)=9\)
\(x^4-3x^3+4x^2-6x+4=0\)