Asked by pavleen

multiply the two binomial below
(2x-3)(2x+3)
the answer is 4x^2+9
is this correct
Answered by Ms. Sue
Did you forget -6x?

Answered by pavleen
a) 4x^2+9
B) 4x^2-9
c) 4x^2-6x-9
d) 4x^2 -12x +9
Answered by Ms. Sue
So what is your choice?

Answered by Ms. Sue
A is not correct.

Why did you throw out -3 * 2x?

Answered by Bosnian
(2x-3)*(2x+3)=2x*(2x-3)+3*(2x-3)
=4x^2-6x+6x+9
=4x^2+9
Answered by Bosnian
Sorry mistake:

(2x-3)*(2x+3)=2x*(2x-3)+3*(2x-3)
=4x^2-6x+6x-9
=4x^2-9

B is correct answer