Question

How to factories this sum please help (A+3)(a+4)-2

Answer 1

(a+3)(a+4)−2

Distribute:

=(a)(a)+(a)(4)+(3)(a)+(3)(4)+−2

=a2+4a+3a+12+−2

Combine Like Terms:

=a2+4a+3a+12+−2

=(a2)+(4a+3a)+(12+−2)

=a2+7a+10

Answer:

=a2+7a+10