Question

If x = -10, find the value of x 2 + 2x

Answer 1

Answer:

x^2+2x=(-10)^2+2(-10)

100-20=80

square of negative integer is positive integer

Answer 2

Answer:

x=-10

(-10) 2 + 2(-10)

-20 + (-20)

-20 -20

-40 <- answer