Question

Factorize: 4p²-36pq+81q²​

Answer 1

4p^2-36pq+81q^2

it looks like the formula (a-b)^2

so, the answer will be (2p-9q)^2

Answer 2

Answer:

$4 {p}^{2} - 36pq + 81 { q}^{2} \\ = ({2p)}^{2} - 2 \times 2p \times 9q + ( {9q)}^{2} \\ = {(2p - 9q)}^{2}$