Question

a^2 - (3a - b)^2 pls factorise

Answer 1

a²-(9a²+b²-6ab)

a²-9a²-b²+6ab

-8a²-b²+6ab

Answer 2

Answer:

(a+3a-b) ( a- 3a+b)

Step-by-step explanation:

a² - (3a - b)²

As, x² - y² = (x+y ) ( x - y)

(a +3a-b) (a- 3a+b)

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