Quadratic Factors and Zeroes

If ∝ , β are the zeroes of x² +7x +10 then ∝β

• -7

• 7

• 10

• -10

Find a quadratic polynomial, whose sum and product of zeroes are \frac{-8}{3} and \frac{4}{3}, respectively.

Find the quadratic polynomial whose zeroes are 3 and -4, respectively

If one zero of the quadratic polynomial x² + 3x + k is 2, then the value of k is

• 10

• 5

• -10

• -5

A quadratic polynomial, whose zeores are -4 and -5, is

• x² - 9x + 20

• x² + 9x + 20

• x²-9x- 20

• x² + 9x- 20

If 1 is one of the zeroes of the polynomial x² + x + k, then the value of k is

• 2

• 4

• -2

• -4

The zeroes of the quadratic polynomial x² – 15x + 50 are

• both negative

• one positive and one negative

• both positive

• both equal

To find zeroes of polynomials, we...

• say x=0

• Watch TV

• ask NASA

• set factors equal to zero

• x=-5

• x=-4 x=1

• x=1

• x=1 and x=-5

• x=-1 and x=5