Question

If a=3,b=-2, then find the value of 3a^2-2b^+4 ab.

Answer 1

3(3)^2-2(-2)+4(3)(-2)
3(9)-4+12(-2)
27-4+24
=47

Answer 2

3×(3)^2 -2×(-2)+4×3×-2
=3 (9)+4-24
=27-20
=7
hope this helps you