Substitute the value of b = -2 to the expression

I do not know how to show the working out but its 4+6+6
Answer:
the answer is: 6z^3
Step-by-step explanation:
We need to solve this equation:

We know that 6X6 = 36
and √ = 1/2
Solving:

So, the answer is: 6z^3
Step-by-step explanation:
Given,
a=3,b=2,c=5
a)a(b+c)
=3(2+5)
=3×7
=21.
B)2ac^2
=2×3×(5)^2
=6×25
=150