Question

What should be subtracted from
polynomial x square -16x +30 so that 15 is zero of the resulting polynomial???​

Answer 1

Answer:

15

Step-by-step explanation:

Let the number that is subtracted be a

$x^2-16x+30-a=0$

15 satisfies this equation:

$15^2-(16)(15)+30-a=0\\225-240+30-a=0\\a=15$

Answer 2

Answer:

hope it helps you

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