What is the simplified form of –3z2(z + 2) – 4(z2 + 1)?
(1 point)
Responses
–7x2 + 1
–7 x 2 + 1
–3z3 – 4z2 – 6z – 4
–3 z 3 – 4z 2 – 6 z – 4
–3z3 – 2z2 – 4
–3 z 3 – 2 z 2 – 4
–3z3 – 10z2 – 4
(1 point)
Responses
–7x2 + 1
–7 x 2 + 1
–3z3 – 4z2 – 6z – 4
–3 z 3 – 4z 2 – 6 z – 4
–3z3 – 2z2 – 4
–3 z 3 – 2 z 2 – 4
–3z3 – 10z2 – 4