Question

How to factorise the following expression:
49g^2-36h^2-28g-24h

Answer 1

\[49g^2-36h^2-28g-24h \rightarrow (7 g-6 h-4) (7 g+6 h)\]

Answer 2

How did you get it that answer

Answer 3

??

Answer 4

\[\large \begin{align}49g^2-36h^2-28g-24h &=[(7g)^2-(6h)^2]-4(7g+6h)\\
&=(7g+6h)(7g-6h)-4(7g+6h)\\&=(7g+6h)(7g-6h-4)\end{align}\]

Answer 5

Cheers

Answer 6

:)