Question

factorise 4a^2-12a+9-49b^2
step by step explanation in english
by any method

Answer 1

$\huge\sf\underline\purple{AnSwer}$

Given:-

Factorie= 4a² - 12a + 9 - 49b²

Need to Find:-

We have to factories.

Solution:-

= (2a)2 - 12a + (3)2 - 49b2

= (2a - 3)2 - 49b2

= (2a - 3)2 - (7b)2

= (2a - 3 - 7b) (2a - 3 + 7b)

= -b2 = (a + b) (a - b)]