Question

3x^2−25x = −28

Select all of the following that are roots of the above polynomial.

Question 1 options:



−4/3


-28


7


4/3


28

Answer 1

Explanation:

3x² - 25x = -28

3x² - 25x + 28 = 0

Quadratic formula

x = [25 ± √(25² – 4·3·28)] / [2·3]

 = [25 ± √289] / 6

 = [25 ± 17] /6

 = 4/3, 7

Answer 2

im pretty sure its 7 and 4/3

Explanation:

`...`