Question

a) 3x(x +1) – 5y(x + 1) h) 3x3(2y – 3z) – 15x(2y – 3z)2 b) 3x(x – 6) – 2(x – 6) k) 3x(z + 2) + 5(-x – 2) c) 4y(x – 1) – (1 – x)

giúp mik vs mn ơi

Answer 1

a)Ta có \(3x\left(x+1\right)-5y\left(x+1\right)=\left(x+1\right)\left(3x-5y\right)\)

b)Ta có \(3x^3\left(2y-3z\right)-15x\left(2y-3z\right)=\left(2y-3z\right)\left(3x^3-15x\right)=\left(2y-3z\right)3x\left(x^2-5\right)\)

k)Ta có \(3x\left(z+2\right)+5\left(-z-2\right)=\left(z+2\right)\left(3x-5\right)\)

c)Ta có \(4y\left(x-1\right)-\left(1-x\right)=\left(x-1\right)\left(4y+1\right)\)