Question

Find the value of the following expressions for x=-2:

(b) 4x - 3x3
(d) 4x3 +6x2 + 4
(e) 9x - 7x2+2​

Answer 1

Answer:

x=-2

B)4x-3x³=4(-2)-3(-2)³=-8+24=16

D)4x³+6x²+4=4(-2)³+6(-2)²+4

=-4(8)+6×4+4=-32+24+4=-32+28=-4

E)9x-7x²+2=9(-2)-7(4)+2=-18-28+2

=-46+2=-44

Step-by-step explanation: