Question

X equals to 1 by 2 is a zero of the polynomial p x bracket equals to 8 x cube minus a x square minus x + 2 find the value of a ​

Answer 1

Answer:

-5/2

Step-by-step explanation:

If x=1/2 is zero of the polynomial.

P(x) =8x^3-a^2-x+2

P(1/2)=8×(1/2)^3-a^2-(1/2) +2

=8×1/8 - a^2-5/2

=-a^2-5/2

A^2=-5/2

A=square root of - 5/2

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Answer 2

A=square root of -5/2

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