Question

9(3x+2)^2-4(2x-1)^2 please solve it on same hour because may exams will held on 11 am please help!help!help!!!!

Answer 1

Step-by-step explanation:

=9(3x+2)2-4(2x-1)2

=18(3x+2)-8(2x-1)

=54x+36-16x+8

=54x-16x+36+8

=38x+44

Answer 2

Answer:

65x^2+124x+32

Step-by-step explanation:

(a+b)^2=a^2+b^2+2ab

(a-b)^2=a^2-+b^2-2ab

=9(9x^2+4+12x)-4(4x^2+1-4x)

=81x^2+36+108x-16x^2-4+16x

=65x^2+124x+32