Question

5x^2- 3x +7 by "-1" solve​

Answer 1

Step-by-step explanation:

5X^2-3X+7=0.

Let X = -1 put in the equation,

5(-1)^2-3(-1)+7=0,

5(1)+3+7=0,

5+3+7=0

15 is not equal to O.

Therefore, X= -1 is not root.