Question

Geometrical prove that a + b x a minus b is equals to a square minus b square​

Answer 1

see explanation

Explanation:

(a + b)(a - b)

each term in the second factor is multiplied by each term in the first factor, that is

a(a - b) + b(a - b) ← distribute parenthesis

= a² - ab + ab - b² ← collect like terms

= a² - b²

Answer 2

Explanation:

a² + b²

difference of two square

= (a + b)(a - b)