2 years ago

Factorise (m+3)^2 - 16

Mathematics

1 answer:

Akimi4 [234]2 years ago

5 0

(m + 3)^2 -16

=(m + 3)^2 - 4^2

=((m+3) + 4)*((m+3) - 4)

=(m+7)(m-1)

Here are the formulas i used:

so first i made 16 to 4^2, then i use (a^2 -b^2)= (a+b)(a-b) . In this case a would be (m+3) and b is 4.

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Factorise (m+3)^2 - 16​

Factorise (m+3)^2 - 16