Question

Solve the equation. x^2+49=0

a.) no real solution.
b.) x= 7
c.) x= -7
d.) x= -7 and x= 7

Answer 1

(-7)^2=49 and 7^2=49
No matter what you plug in for x, squaring it will make it come back positive. Therefore it will be impossible to get -49+49=0. So there is no solution.

a) no real solution

Answer 2

C

Explanation:

-7 squared is -49, -49 plus 49 is 0.