Question

If -3 is a zero of the polynomial (a – 1)x 2 + ax + 1, then find the value of a

Answer 1

Answer:

I don,t know sorry I will not understand your question

Answer 2

Answer:

Here's your answer

Step-by-step explanation:

Given = -3 is a zero of a polynomial

               p(x) = (a - 1)x^2 + ax + 1

According to the question

p(-3) = (a - 1)(-3)^2 + a(-3) + 1 = 0

        ⇒(a - 1)9 - 3a + 1 = 0

        ⇒9a - 9 - 3a + 1 = 0

        ⇒9a - 3a - 9 + 1 = 0

        ⇒6a - 8 = 0

        ⇒6a = 8

        ⇒a = 8/6

        ⇒a = 4/3

Hope you understand .