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3 years ago

Factorize completely the expression (2a+2b)²+4b²-a².

1 answer:

4 0

Let’s first expand out before factorising completely.

(2a + 2b) (2a + 2b) =

4a^2 + 8ab + 4b^2

Add to 4b^2 - a^2

4a^2 + 8ab + 8b^2 - a^2

= 3a^2 + 8ab + 8b^2
=8b (a + b) + 3a^2
=8b (a + b + 3a^2/8b)
=8b (b+ a(1+3a/8b))

This might be wrong lol.

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3 years ago

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marusya05 [52]

Kaleerain5,

In order to get your answer you must remember that if the exponent is negative move to the left and if the exponent is positive you have to move to the right.

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4 years ago

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Strike441 [17]

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3 years ago

Factorize completely the expression (2a+2b)²+4b²-a².​

Factorize completely the expression (2a+2b)²+4b²-a².