Các câu hỏi tương tự
Rút gọn biểu thức:
a) \(\left(x^2-2x+2\right)\left(x^2-2\right)\left(x^2+2x+2\right)\left(x^2+2\right)\)
b) \(\left(a+b+c\right)^2+\left(a+b-c\right)^2+\left(2a-b\right)^2\)
c) \(100^2-99^2+98^2-97^2+...+2^2-1^2\)
d) \(3\left(2^2+1\right)\left(2^4+1\right)...\left(2^{64}+1\right)+1\)
Giup mình vs mình dang cần gấp
Rút gọn biểu thức:
a) \(\left(x^2-2x+2\right)\left(x^2-2\right)\left(x^2+2x+2\right)\left(x^2+2\right)\)
b) \(\left(a+b+c\right)^2+\left(a+b-c\right)^2+\left(2a-b\right)^2\)
c) \(100^2-99^2+98^2-97^2+...+2^2-1^2\)
d) \(3\left(2^2+1\right)\left(2^4+1\right)...\left(2^{64}+1\right)+1\)
Giup mình vs mình dang cần gấp
Rút gọn các biểu thức sau : A 2x^2left(-3x^3+2x^2+x-1right)+2xleft(x^2-3x+1right)B 2x:dfrac{1}{2}x+x^2C left[1:left(1+xright)+2x:left(1-x^2right)right]:left(dfrac{1}{x}-1right)D dfrac{x^2-y^2}{x+y}.dfrac{left(x+yright)^2}{x}+dfrac{y^2}{x+y}.dfrac{left(x+yright)^2}{x}E dfrac{left|x-3right|}{x^2-9}.left(x^2+6x+9right)F dfrac{sqrt{x}}{sqrt{x}-5}-dfrac{10sqrt{x}}{x-25}-dfrac{5}{sqrt{x}+5}
Đọc tiếp
Rút gọn các biểu thức sau :
A = \(2x^2\left(-3x^3+2x^2+x-1\right)+2x\left(x^2-3x+1\right)\)
B = \(2x:\dfrac{1}{2}x+x^2\)
C = \(\left[1:\left(1+x\right)+2x:\left(1-x^2\right)\right]:\left(\dfrac{1}{x}-1\right)\)
D = \(\dfrac{x^2-y^2}{x+y}.\dfrac{\left(x+y\right)^2}{x}+\dfrac{y^2}{x+y}.\dfrac{\left(x+y\right)^2}{x}\)
E = \(\dfrac{\left|x-3\right|}{x^2-9}.\left(x^2+6x+9\right)\)
F = \(\dfrac{\sqrt{x}}{\sqrt{x}-5}-\dfrac{10\sqrt{x}}{x-25}-\dfrac{5}{\sqrt{x}+5}\)
Rút gọn các biểu thức sau:
A. \(\left(a^2+a-1\right)\left(a^2-a+1\right)\)
B. \(\left(a+2\right)\left(a-2\right)\left(a^2+2a+4\right)\left(a^2-2a+4\right)\)
C, \(\left(2+3y\right)^2-\left(2x-3y\right)^2-12xy\)
D. \(\left(x+1\right)^3-\left(x-1\right)^3-\left(x^3-1\right)-\left(x-1\right)\left(x^2+x+1\right)\)
ITính nhanha.127^2+146.127+73^2b.9^8.2^8left(18^4-1right)left(18^4+1right)c.100^2-99^2+98^2-97^2+...+2^2-1^2d.frac{780^2-220^2}{125^2+150.125+75^2}II.Rút gọn các biểu thứcx^2left(x+4right)left(x-4right)-left(x^2+1right)left(x^2-1right)left(y-3right)left(y+3right)left(y^2+9right)-left(y^2+2right)left(y^2-2right)5left(2x-1right)^2+4left(x-1right)left(x+3right)-2left(5-3xright)^2
Đọc tiếp
\(I\)Tính nhanh
\(a.127^2+146.127+73^2\)
\(b.9^8.2^8\left(18^4-1\right)\left(18^4+1\right)\)
\(c.100^2-99^2+98^2-97^2+...+2^2-1^2\)
\(d.\frac{780^2-220^2}{125^2+150.125+75^2}\)
\(II.\)Rút gọn các biểu thức
\(x^2\left(x+4\right)\left(x-4\right)-\left(x^2+1\right)\left(x^2-1\right)\)
\(\left(y-3\right)\left(y+3\right)\left(y^2+9\right)-\left(y^2+2\right)\left(y^2-2\right)\)
\(5\left(2x-1\right)^2+4\left(x-1\right)\left(x+3\right)-2\left(5-3x\right)^2\)
rút gọn các biểu thức sau
a, \(\left(2x+1\right)^2+2\left(4x^2-1\right)+\left(2x-1\right)^2\)
b, \(\left(x^2-1\right)\left(x+2\right)-\left(x-2\right)\left(x^2+2x+4\right)\)
Rút gọn biểu thức
a, \(A=\left(x+2\right)^2+4\left(x+2\right)\left(x-2\right)+\left(x-4\right)^2\)
b, \(B=\left(3x^2-2x+1\right)\left(3x^2+2x+1\right)-\left(3x^2+1\right)^2\)
c, \(C=\left(x^2-5x+2\right)^2-2\left(x^2-5x+2\right)\left(5x-2\right)+\left(5x-2\right)^2\)
Rút gọn các biểu thức sau :a ) A left(frac{1}{4}x-yright)left(x^2+4xy+16y^2right)+4left(4y^3-frac{1}{16}x^3+1right)b ) B 2xleft(x-4right)^2-left(x+5right)left(x-2right)left(x+2right)+2left(x-5right)^2-left(x-1right)^2c ) C frac{80x^3-125x}{3left(x-3right)-left(x-3right)left(8-4xright)}d ) D frac{left(a-bright)left(c-dright)}{left(b^2-a^2right)left(d^2-c^2right)}Mình đg cần gấp . đảm bảo tick trả đầy đủ
Đọc tiếp
Rút gọn các biểu thức sau :
a ) A = \(\left(\frac{1}{4}x-y\right)\left(x^2+4xy+16y^2\right)+4\left(4y^3-\frac{1}{16}x^3+1\right)\)
b ) B = \(2x\left(x-4\right)^2-\left(x+5\right)\left(x-2\right)\left(x+2\right)+2\left(x-5\right)^2-\left(x-1\right)^2\)
c ) C = \(\frac{80x^3-125x}{3\left(x-3\right)-\left(x-3\right)\left(8-4x\right)}\)
d ) D = \(\frac{\left(a-b\right)\left(c-d\right)}{\left(b^2-a^2\right)\left(d^2-c^2\right)}\)
Mình đg cần gấp . đảm bảo tick trả đầy đủ
a) A left(a+b+cright)^3+left(a-b+cright)^3-6aleft(b+cright)^2b) B left(2+1right)left(2^2+1right)left(2^4+1right)left(2^8+1right)left(2^{16}+1right)c) C 5left(2x-1right)^2+4left(x-1right)left(x+3right)-2left(5-3xright)^2d) D left(9x-1right)^2+left(1-5xright)^2+2left(9x-1right)left(1-5xright)e) E left(2a^2+2a+1right)left(2a^2-2a+1right)-left(2a^2+1right)^2
Đọc tiếp
a) A= \(\left(a+b+c\right)^3+\left(a-b+c\right)^3-6a\left(b+c\right)^2\)
b) B= \(\left(2+1\right)\left(2^2+1\right)\left(2^4+1\right)\left(2^8+1\right)\left(2^{16}+1\right)\)
c) C= \(5\left(2x-1\right)^2+4\left(x-1\right)\left(x+3\right)-2\left(5-3x\right)^2\)
d) D= \(\left(9x-1\right)^2+\left(1-5x\right)^2+2\left(9x-1\right)\left(1-5x\right)\)
e) E= \(\left(2a^2+2a+1\right)\left(2a^2-2a+1\right)-\left(2a^2+1\right)^2\)