Question

Verify whether the indicate number are zeroes of their corresponding polynomial
(a) Q(s)= –4s³+7s²–24 ;s=–4 and –1

Answer 1

Answer:

=-4(-4)3+7(-4)2-24

=-4(-64)+6(-4)2-24

256+7(-16)

256+112-24

=368-24

=344

2ND

=-4(-1)3+7(-1)2-24

=4+7-24

11-24

=-13