Question

-3(x+9)^2=-63

Answer 1

Divide both sides by \(-3\) to get $$(x+9)^2=21$$Do you know how to undo a square?

Answer 2

what do you mean by undo ?

Answer 3

square root of 21 is 4.6 right ?

Answer 4

Approximately, sure.

Answer 5

so i try to do everything and the answer is x=-4.4 or/and -13.6 ?