9x2 - (2x - 3y)2 = ?

9x² - (2x - 3y)² = ?

A (5x - 3y)(x + 3y)

B (5x - 3y)(x - 3y)

C (5x + 3y)(x - 3y)

D কোনটিই নয়

Solution

Correct Answer: Option A

9x²-(2x-3y)²
= (3x)²-(2x-3y)²
= ( 3x+2x-3y) (3x-2x+3y)
= (5x-3y)(x+3y)