Question

( x + 4) × ( x + 3 ) - ( x - 4 ) × ( x - 3 )​

Answer 1

Step-by-step explanation:

3x(4x−5)+3=12x

2

−15x+3

x=3 gives the value 12(9)−15×3+3

=108−45+3

=66

Answer 2

Step-by-step explanation:

(x^2+3x+4x+12)-(x^2-3x-4x+12)

x^2+7x+12-x^2+7x-12

14x=0

x=0