Question

Find the value of z if: xyz = (4x + 5y)² - (4x- 5y)² ​

Answer 1

Answer:

put the identity (a+b)^2 and (a-b)^2 then you will get your perfect answer

Answer 2

$\large\bf{\underline\green{☕︎Good \: Morning☕︎}}$

Given,

xyz = (4x + 5y)² - (4x- 5y)²

xyz = 16x² + 40xy + 25y² - (16x² - 40xy + 25y²)

xyz = 80xy

z = 80xy/xy

z = 80