Question

For what value of p, (–4) is a zero of the polynomial x2 – 2x – (7p + 3)?

Answer 1

Answer:

p = 3

Step-by-step explanation:

p(x) = x2 - 2x - (7p + 3)

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

0 = 16 + 8 -7p -3

0 = 16 + 5 -7p

0 = 21 -7p

21 = 7p

3 = p

hope this helps you..

Answer 2

Answer:

3

Step-by-step explanation:

x²-2x-(7p+3)=0

we know that, x= -4

now put the value of x in the equation

⇒(-4)²-2(-4)-7p-3=0

⇒16+8-3-7p=0

⇒21-7p=0

⇒-7p=-21

⇒p=21/7

⇒p=3

If p = 3 , then (-4) is a factor of p(x)