Question

What is the sum of the roots of x^2-11x+28=0? A. 11 B. 28 C.-11 D.-28

Answer 1

Answer:

C. -11

Step-by-step explanation:

-11x is the sum and x^2 x 28 is the product

Answer 2

Answer

+11

Step-by-step explanation:

x² × 28 = +28

-7 × -4 = 28

-7 - 4 = - 11

x -7 = 0, x - 4 = 0

x = +7, x = +4

+7 +4 = +11