Question

The sum of zeros of polynomial 7 x square - 14x + 21

Answer 1

Step-by-step explanation:

The sum of zeros of polynomial 7 x square - 14x + 21

$7x {}^{2} - \frac{11x}{3} - \frac{2}{3}$

so multiply 3 in this polynomial we get

21x²-11x-2

21x²-14x+3x-2

7x(3x-2)+1(3x-2)

(7x+1)(3x-2)

so the zeroes are

$x = \frac{( - 1)}{7}$

$x = \frac{2}{3}$