Q7 of 113 Page 50

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:
2x² – 11x + 15

Let f(x) = 2x² – 11x + 15

Put f(x) = 0

2x² - 11x + 15 = 0

2x² - 6x - 5x + 15 = 0

2x(x - 3) - 5(x - 3) = 0

(2x - 5) (x - 3) = 0

Now, sum of zeroes= =

Product of zeroes

Hence, relationship verified.

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:

5x² – 4 – 8x

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:

4x² – 4x + 1

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:

x² – 5

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:2x2 – 11x + 15