Question

factorise X^2y^2z^2+x^2y^2+x^2y^2q^2​

Answer 1

Answer:

We can write it as

x 2 +y 2 −z 2 −2xy =(x 2 +y 2−2xy)−z 2

So we get

x 2 +y 2 −z 2 −2xy =(x−y) 2 −z 2

Based on the equation

a 2 −b 2 =(a+b)(a−b)

We get ,x 2 +y 2 −z 2 −2xy =(x−y+z)(x−y−z)