of 9is a zero of polynomial x^2+ax-7. then find the value of a​

Question

of 9is a zero of polynomial x^2+ax-7. then find the value of a​

in progress 0
Adalynn 2 weeks 2021-09-14T12:07:45+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-14T12:09:00+00:00

    Answer:

    please mark it as brainliest also follow me……

    0
    2021-09-14T12:09:30+00:00

    Answer:

    a= -8

    Step-by-step explanation:

    F(x)= x^2+ ax- 7

    Since 9 is a zero,

    F(9)= (9)^2+ a(9)- 7= 0

    F(9)= 81+ 9a- 7= 0

    9a= -72

    a= -8

    Rate this answer 5 stars and brainliest it

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )