Question

Factorise the following:
(a) 9y² + 36 yz + 36z²
(b) 49p² - 9q²​

Answer 1

Step-by-step explanation:

(a) 9y²+36yz + 36z²

|(a+b)²=a²+2ab+b² form|

=(3y)²+2×3y×6z+(6z)²

=(3y+6z)²

=3y+6z)(3y+6z)

(b) 49p²-9q²

|a²-b² form| we know that a²-b²=(a+b)(a-b)

=(7p)² - (3q)²

=(7p+3q)(7p-3q)

hope this helps....