The sum and product of the zeros of a quadratic polynomial are 2 and -

1.	The sum and product of the zeros of a quadratic polynomial are 2 and -15 respectively. The quadratic polynomial is (a) x 2 -2x+15 (b) x2 -2x-15 (c) x2+2x-15 (d) x2+2x+15
Answer» Given(CONSIDER the ax²+bx+c=0): -B/a=2 c/a=-15 From the two we GET: b=-2a c=-15a Now a is ONE so we get b=-2 c=-15. x²-2x-15 is choice b.

The sum and product of the zeros of a quadratic polynomial are 2 and -15 respectively. The quadratic polynomial is (a) x 2 -2x+15 (b) x2 -2x-15 (c) x2+2x-15 (d) x2+2x+15

Answer»

Given(CONSIDER the ax²+bx+c=0):

-B/a=2

c/a=-15

From the two we GET:

b=-2a
c=-15a

Now a is ONE so we get b=-2 c=-15.

x²-2x-15 is choice b.

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The sum and product of the zeros of a quadratic polynomial are 2 and -15 respectively. The quadratic polynomial is (a) x 2 -2x+15 (b) x2 -2x-15 (c) x2+2x-15 (d) x2+2x+15

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