SOLUTION: 5x^2/6-7x/2+2/3=0

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Question 665136: 5x^2/6-7x/2+2/3=0
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
5x%5E2%2F6-7x%2F2%2B2%2F3=0 ....each term on both sides multiply by 6

6%2A5x%5E2%2F6-6%2A7x%2F2%2B6%2A2%2F3=6%2A0




5x%5E2-21x%2B4=0......now use quadratic formula to solve for x

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

x+=+%28-%28-21%29+%2B-+sqrt%28+%28-21%29%5E2-4%2A5%2A4+%29%29%2F%282%2A5%29+

x+=+%2821+%2B-+sqrt%28+441-80+%29%29%2F10+

x+=+%2821+%2B-+sqrt%28+361+%29%29%2F10+

x+=+%2821+%2B-+19%29%2F10+

solutions:

x+=+%2821+%2B+19%29%2F10+
x+=+40%2F10+
highlight%28x+=+4%29
or
x+=+%2821+-+19%29%2F10+
x+=+-2%2F10+
highlight%28x+=+-0.2%29