SOLUTION: How do I use the quadratic formula to solve: 1.4x^2-2x-10=0

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Question 98341This question is from textbook college algebra
: How do I use the quadratic formula to solve: 1.4x^2-2x-10=0 This question is from textbook college algebra

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
1.4x^2-2x-10=0 x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(2+-SQRT[-2^2-4*1.4*-10])/2*1.4
X=(2+-SQRT[4+56])/2.8
X=(2+-SQRT60)/2.8
X=(2+-7.746)/2.8
X=(2+7.746)/2.8
X=9.746/2.8
X=3.48 ANSWER.
X=(2-7.746)/2.8
X=-5.746/2.8
X=-2.052 ANSWER.