SOLUTION: Solve the quadratic formula. x2-30x+50=0. Must show work.

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Question 997936: Solve the quadratic formula. x2-30x+50=0. Must show work.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Can the quadratic member be factored?
x%5E2-30x%2B50=0

2*25, 5*10, but none seem to work:
(x___2)(x___25), no.
(x___5)(x___10), no.


Use formula for general solution to a quadratic equation.
Discriminant, %28-30%29%5E2-4%2A1%2A50=900-200=700;

x=%2830%2B-+sqrt+%28700%29%29%2F2

x=%2830%2B-+10sqrt%287%29%29%2F2

highlight%28x=15%2B-+5sqrt%287%29%29