SOLUTION: solve by completing the square x^2+7x-30=0 what is the solution for x?? use commas to separate as needed

Question 353789: solve by completing the square
x^2+7x-30=0
what is the solution for x?? use commas to separate as needed
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

Add to both sides

Take 1/2 of , square it, and
add it to both sides

Both sides are now perfect squares. The
right side doesn't have to be a perfect
square, but the solution is neater if it is.
Now take the square root of both sides

Taking the (-) square root:

From these I get
and

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