SOLUTION: Hi please help with this equation... Solve for X 1.)X(exponent 2)-3X-10=0

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Question 469747: Hi please help with this equation...
Solve for X
1.)X(exponent 2)-3X-10=0
Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2-3x-10=0
ax%5E2%2Bbx%2Bc=0
a=1
b=-3
c=-10
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%283+%2B-+sqrt%28+9%2B40%29%29%2F%282%29+
x+=+%283+%2B-+sqrt%28+49%29%29%2F%282%29+
x+=+%283+%2B-+7%29%2F%282%29+
x+=+%283+%2B7%29%2F%282%29+
x+=+5+
or
x+=+%283+-+7%29%2F%282%29+
x+=+-4%2F2+
x=-2