Question

Factorise

Answer 1

Answer:

Step-by-step explanation:

4a^2 +4a +1

=4a^2 + 2*2a*1 + 1^2

it's in form of (a+b)^2

so,

(2a)^2 + 2*2a*1 + 1^2= (2a+1)^2

now,

4a^2 -4b^2+4a +1

=4a^2 +4a +1 - 4b^2

=(2a+1)^2 - 4b^2

it's in form a^2-b^2 = (a-b)(a+b)

=(2a+1)^2 -(2b)^2

=(2a+1+2b)(2a+1-2b)

Hope it helps

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