SOLUTION: What is the exact solution of x^2+45x=-200 using the quadratic formula?

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Question 685161: What is the exact solution of x^2+45x=-200 using the quadratic formula?
Found 2 solutions by MathLover1, lynnlo:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B45x=-200
x%5E2%2B45x%2B200=0..... using the quadratic formula will be

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

x+=+%28-45+%2B-+sqrt%2845%5E2-4%2A1%2A200+%29%29%2F%282%2A1%29+

x+=+%28-45+%2B-+sqrt%282025-800+%29%29%2F2+

x+=+%28-45+%2B-+sqrt%281225+%29%29%2F2+

x+=+%28-45+%2B-+35%29%2F2+

solutions:

x+=+%28-45+%2B35%29%2F2+

x+=+-10%2F2+

x+=+-5+
or
x+=+%28-45+-35%29%2F2+

x+=+80%2F2+

x+=+40+

+graph%28600%2C+600%2C+-50%2C+50%2C+-300%2C+300%2C+x%5E2%2B45x%2B200%29+



Answer by lynnlo(4176) About Me  (Show Source):