a. P=(5x−1)2+2(1−5x)(4+5x)+(5x+4)2P=(5x−1)2+2(1−5x)(4+5x)+(5x+4)2
b. Q=(x−y)3+(y+x)3+(y−x)3−3xy(x+y)
rút gọn biểu thức
a)P=(5x-1)+2(1-5x)(4+5x)+(5x+4)^2
b)Q=(x-y)^3+(y+x)^3+(y-x)^3-3xy(x+y)
Rút gọn biểu thức:
a) P= (5x-1)+2x(1-5x)x(4+5x)+(5x+4)^2
b) Q= (x-y)^3+(y+x)^3+(y-x)^3-3xy(x+y)
c) 12(5^2+1)(5^4+1)(5^8+1)(5^16+1)
Rút gọn biểu thức:
a) P= (5x-1)+2x(1-5x)x(4+5x)+(5x+4)^2
b) Q= (x-y)^3+(y+x)^3+(y-x)^3-3xy(x+y)
c) 12(5^2+1)(5^4+1)(5^8+1)(5^16+1)
a: \(P=\left(5x-1-5x-4\right)^2=\left(-3\right)^2=9\)
b: \(Q=\left(x+y\right)^3-3xy\left(x+y\right)=x^3+y^3\)
c: \(=\dfrac{\left(5^2-1\right)\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{\left(5^4-1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{\left(5^8-1\right)\left(5^8+1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{5^{32}-1}{2}\)
rút gọn biểu thức
a) P=(5x-1)+2(1-5x)(4+5x)+(5x+4)2
b) Q=(x-y)3+(y+x)3+(y-x)3-3xy(x+y)
Rút gọn các biểu thức
a) P=(5x-1)+2(1-5x)(4+5x)+(5x+4)2
b) Q=(x-y)3+(y+x)3+(y-x)3-3xy(x+y)
Rút gọn biểu thức:
a) P = (5x - 1) + 2(1 - 5x)(4 + 5x) + (5x + 4)2
b) Q = (x - y)3 + (y + x)3 + (y - x)3 - 3xy(x + y)
q=x^3 - y^3 + y^3 + x^3 + y^3 - x^3 - 3x^2y + 3xy^2
rồi thu gọn
a ) phải là\(\left(5x-1\right)^2+2\left(1-5x\right)\left(4+5x\right)+\left(5x+4\right)^2\)
Rút gọn
a) P=(5x-1)+2(1-5x)(4+5x)+(5x+4)2
b) Q=(x-y)3+(y+x)3+(y-x)3-3xy(x+y)
rút gọn các biểu thức sau .
a) P= (5x-1)+2(1-5x)(4+5x)+(5x+4)2
b) Q = (x-y )3 + (y+x)3+(y-x)3-3xy(x+y)
a) P= (5x-1)+2(1-5x)(4+5x)+(5x+4)2
P = (5x-1)2 + 2(1 - 5x)(4 + 5x)+ (5x + 4)2 - (5x - 1)2
P = (5x - 1 + 5x + 4)2 - (5x - 1)2
P = (5x - 1 + 5x + 4 - 5x + 1) (5x - 1 + 5x + 4 + 5x - 1)
b) làm tương tự nhé!! kết quả: Q = x3 + y3
t i c k nha!! 5364574674675678568585785789769647568585
Rút gọn biểu thức:
a) P=(5x -1) +2(1 -5x)(4 +5x) +(5x +4)2
b) Q=(x -y)3 + (y+x)3 +(y -x)3 - 3xy(x+y)