Question

Factorize it.and give answer​

Answer 1

Answer:

Step-by-step explanation:

1) ax + bx -ay -by

 = x(a+b)-y(a+b)

 =  (x-y) (a+b)

2)9x²y² - 16

  = (3xy)²- (4)²                              ∵a²-b² = (a+b) (a-b)

  = (3xy+4)(3xy-4)

3)(x²-2xy+y²)-z²

= (x-y)²-z²                                       ∵a²-b² = (a+b) (a-b)

= (x-y+z)(x-y-z)

4)x^4 - (y+z)^4

= (x²)²- [{y+z}²]²                               ∵a²-b² = (a+b) (a-b)

= [x²-(y+z)²][x²+(y+z)²]

= (x-y-z)(x+y+z)[x²+(y+z)²]               ∵a²-b² = (a+b) (a-b)