1. (3×+4) (3×+4)

1.(9×+4) (3×+4)

=9×2+24×+16

2.(3×+4) (3×-4)

=8ײ-16

3.(3×-4)(3×-4)

=9ײ-24×+16

maaf kalo salah ya, semoga bermanfaat