Question

is x=-3 a solution to the equation -3x^2 = - 27

Answer 1

-3^2 is just -3 times negative 3, so multiply -3 three times, or -3*-3*-3

Answer 2

why don't we solve for x in the equation to the right?

Answer 3

To find out if x=-3 a solution to the equation $$-3x^2 = -27$$
you substitute -3 into the equation for x and see if you get a true statement because that is the definition of a solution of an equation. $$-3(-3)^2 =?= -27$$

Answer 4

@logiczz: would you please get involved in this discussion.

Answer 5

Please don't post a problem with the hope or expectation that someone will give you the answer. You need to become involved if you want to learn this material.