Question

Expand the following using suitable identities. a) (6x +4) (6x−5)

Answer 1

Answer:

36x²-30x+24x-20

36x²-6x-20

Answer 2

Answer:

${x}^{2} + (a - b)x - ab$

$= > {36x}^{2} + (4 - 5)6x - 20$

$= > {36x}^{2} + 24x - 30x - 20$

$= > {36x}^{2} - 6x - 20(ans)$