Question

Is x=-2 a solution for the equation below?

Answer 1

no

Explanation:

-7+x^2-3x = 9+x-10

-7+(-2)^2-3*(-2) 9+(-2)-10

-7+4+6 9-12

3 > -3

if we substitute -2 to x, answer is not equal

Answer 2

x= -2

-7 +x^2 - 3x = 9 +x - 10

-7 + (-2)^2 -3×(-2) = 9 + (-2) -10

-7 +4 +6 = 9 - 2 - 10

-7+10=9-12

3 =-3

Don't blame me if this is incorrect:)