Question

. Find the value of “p” from the polynomial x2 + 3x + p, if one of the zeroes of the polynomial is 2.
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Answer 1

Answer:

As 2 is the zero of the polynomial.

We know that if α is a zero of the polynomial p(x), then p(α) = 0

Substituting x = 2 in x2 + 3x + p,

⇒ 22 + 3(2) + p = 0

⇒ 4 + 6 + p = 0

⇒ 10 + p = 0

⇒ p = -10

Answer 2

Answer:

-10

Step-by-step explanation:

x2 +3x + p = 0

put 2 in place of x

4 +6 =-p

-p = 10

p = -10