Question

4z+xsquare=(x-2) (x+2) using identity a+b a-b​

Answer 1

Answer:

4z+x²=(x+2)(x-2)

a²+b²=(a+b)(a-b)

4z²+x²=(x-4)(x+4) (by placing square)

4z+x²=(x-√4)(x+√4)

4z+x²=(x-2)(x+2)