Question

Factors of $49p^2-36$ is/are:

• A. $(7p-6)$
• B. $(7p+6)$
• C. $(7p+6)(7p+6)$
• D. $(6p+7)$

Answer 1

Answer: (A), (B)

The correct options are
A

$(7p-6)$

B

$(7p+6)$

Factorise using identities $(a{)}^2-(b^2)=(a+b\left)\right(a-b):$

$49p^2-36$ can be written as $(7p{)}^2-(6{)}^2=(7p-6)(7p+6)$

This cannot be factorised into any further factors.