Question

$9r {}^{2} - 36s {}^{2} \: factorise$
factories krke btae ​

Answer 1

Answer :

x square + 9x - 36=0

x square + 12x - 3x=0

x (x + 12) - 3(x + 12)=0

(x - 3) (x + 12)=0

x = 3 and x = -12

Explanations

This is useful / or not