Question

b. 3x(2x-4) - 3 (x-4) - 12 for x = -3​

Answer 1

Answer:

3×(-3){2×(-3) - 4} -3(-3-4) - 12

=-9×(-6-4) -3×(-7) - 12

=-9×-10 -21 -12

=90-33

=57(Ans.)