PLEASE HELP 50 POINTS 


which expression represents 4x^2-9 in factored form
1.) (3x+2)(3x-2)
2.)(2x-3)(2x-3)
3.)(2x+3)(2x+3)
4.)(2x+3)(2x-3)

which expression represents x^2-8x+16 in factored form
1.)(x+4)(x-4)
2.)(x-4)^2
3.)(2-x)(x-8)
4.)(x+4)^2

which expression represents x^2+7x-60 in factored form

1.)(x-6)(x+10)
2.)(x+5)(x-12)
3.)(x-5)(x-12)
4.)(x-5)(x+12)