Question

7. p(x) = 2x* + x - 8x² - x +6,8(x) = 2x - 3​

Answer 1

Step-by-step explanation:

x2−2x−3=(x−3)(x+1),

By the factor theorem,

k(−1)3−8(−1)2+p(−1)+6=0

−k−p=2…(1)

k(3)3−8(3)2+p(3)+6=0

27k+3p=66

i.e.9k+p=22…(2)

(1) + (2) gives k=3 and

−3−p=2 implies that p=−5.