Question

What is simplified form of -3z^2(z+2)-4(z^2+1)?
A.-7x^2+1
B.-3z^3-4z^2-6z-4
C.-3z^3-2z^2-4
4.-3z^3-10z^2-4

Answer 1

-3Z^2 [Z +2] -4 [Z^2 + 1]
- 3Z^3 - 6Z^2 - 4Z^2 -4
-3Z^3 - 10Z^2 - 4.
The correct option is D.