If x – 4 is a factor of x^2 + bx – 24, what is the value of b?

Question

If x – 4 is a factor of x^2 + bx – 24, what is the value of b?

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Claire 3 weeks 2021-09-27T05:13:17+00:00 1 Answer 0

Answers ( )

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    2021-09-27T05:15:15+00:00

    Answer:

    b=2

    Step-by-step explanation:

    if x-4 is a factor,then, x-4=0 hence, x=4

    sub x=4 in the equation and equate it to zero -from factor theorem

    4^2 +4b -24=0

    16+4b -24=0

    4b=24-16

    4b=8

    b=8/4=2

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45:7+7-4:2-5:5*4+35:2 =? ( )