Q. 105.0( 2 Votes )


Determine whethe

Answer :


Let p(x) = (x+4)(x-5)


If x = -4 is a zero of the polynomial p(x), then it must satisfy p(-4) = 0.

So, on putting x = -4 in the above equation, we get:

p(-4) = (-4 + 4)(-4 - 5)

= (0)(-9)

= 0.

Therefore the given value of x is a zero of the given polynomial.
If x = 5 is a zero of the polynomial p(x), then it must satisfy p(5) = 0.

So, on putting x = 5 in the above equation, we get:

p(5) = (5 + 4)(5 - 5)

= (9)(0)

= 0.

Therefore the given value of x is a zero of the given polynomial.

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