Question

Giúp mik vs ạ mik cảm ơn nhiều ạ

Answer 1

Đáp án không thôi nhá chứ giải mất tg lắm

Answer 2

a) \(6x^2-8x=2x\left(3x-4\right)\)

b) \(21x^2y^7-12x^5y^3=3x^2y^3\left(7y^4-4x^3\right)\)

c) \(4x^2y-6xy^2=2xy\left(2x-3y\right)\)

d) \(24x^2y-18xy^2=6xy\left(4x-3y\right)\)

Answer 3

e) \(9x^2y^2+12x^2y-15xy^2=3xy\left(3xy+4x-5y\right)\)

f) \(x\left(x+y\right)+y\left(-x-y\right)=x\left(x+y\right)-y\left(x+y\right)=\left(x+y\right)\left(x-y\right)\)

g) \(3\left(x+y\right)+x\left(x+y\right)=\left(x+y\right)\left(x+3\right)\)

h) \(3x\left(x-y\right)-6y\left(y-x\right)=3x\left(x-y\right)+6y\left(x-y\right)=3\left(x-y\right)\left(x+2y\right)\)

 

Answer 4

i) \(5x\left(x+1\right)-7x^2\left(x+1\right)=x\left(x+1\right)\left(5-7x\right)\)

j) \(6x^2\left(x-1\right)-10x\left(x-1\right)=2x\left(x-1\right)\left(3x-5\right)\)

k) \(5x\left(x+1\right)-7x^2\left(x+1\right)=x\left(x+1\right)\left(5-7x\right)\)

e) \(\left(x+2\right)\left(x+1\right)-\left(x+1\right)=\left(x+1\right)^2\)

Answer 5

e) 9x²y²+12x²y-15xy²=3xy(3x+4x-5y)

g)3(x+y)+x(x+y)=(3+x)(x+y)

h)3x(x-y)-6y(y-x)=(x-y)(3x-6y)