Question

Q.4 Evaluate (3-2x)(3+2x)​

Answer 1

$\huge\mathfrak\purple{solution}$

$(3) {^2} - (2x) {^2}$

$using:\ identity (a) {^2} - (b) {^2}$

Hope it helps you..

Answer 2

Answer:

Let 3 be a and 2x be b.

(a-b) (a+b) = a²-b² = (3)²-(2x)² = 9 - 4x²