Question

The product of (2x+9) and (2x-7) is​

Answer 1

Answer:

$4x^2 + 4x - 63$

Step-by-step explanation:

(2x + 9)( 2x - 7)               $[(x+a)(x+b) = x^2 + x (a+b) + ab]$

==> $(2x)^2 + 2x(9-7) + (9)(-7)$

==> 4x² + 4x - 63 <==