SOLUTION: solve the equation(x + 3)(x - 3) = -8 solution x + 3 = -8 => x= -11 or (x-3) = -8 => x = -5 is this correct?
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-> SOLUTION: solve the equation(x + 3)(x - 3) = -8 solution x + 3 = -8 => x= -11 or (x-3) = -8 => x = -5 is this correct?
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Question 477424
:
solve the equation(x + 3)(x - 3) = -8
solution
x + 3 = -8 => x= -11 or (x-3) = -8 => x = -5
is this correct?
Answer by
MathLover1(20850)
(
Show Source
):
You can
put this solution on YOUR website!
NO, it's not correct.
...first multiply left side
......add
to both sides
....factor
.........NOW, when you have a product equal to
, you can find solutions:
.......->......
.......->......
let's see it on a graph: