SOLUTION: 25 x2 + 10 x = 63

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Question 752699: 25
x2
+
10
x
= 63
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
25x%5E2%2B10x=63
25x%5E2%2B10x-63=0......use quadratic formula to solve for x

x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ...note:a=25, b=10, and c=-63
x+=+%28-10+%2B-+sqrt%28+10%5E2-4%2A25%2A%28-63%29+%29%29%2F%282%2A25%29+

x+=+%28-10+%2B-+sqrt%28+100-100%2A%28-63%29+%29%29%2F50+

x+=+%28-10+%2B-+sqrt%28+100%2B6300+%29%29%2F50+

x+=+%28-10+%2B-+sqrt%28+6400+%29%29%2F50+

x+=+%28-10+%2B-+80+%29%2F50+

solutions:

x+=+%28-10+%2B+80+%29%2F50+

x+=+70+%2F50+

highlight%28x+=+7%2F5%29+

or

x+=+%28-10+-80+%29%2F50+

x+=+-90+%2F50+

highlight%28x+=+-9%2F5%29+