SOLUTION: Solve by the quadratic formula; simplify your answer; use i notation to express any nonreal complex numbers. Clearly label your values for a, b, and c. 8x^2-10x-2=0

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve by the quadratic formula; simplify your answer; use i notation to express any nonreal complex numbers. Clearly label your values for a, b, and c. 8x^2-10x-2=0       Log On


   

Question 16095: Solve by the quadratic formula; simplify your answer; use i notation to express any nonreal complex numbers. Clearly label your values for a, b, and c.
8x^2-10x-2=0
Answer by xcentaur(357) About Me  (Show Source):
You can put this solution on YOUR website!
8x^2-10x-2=0
Compare with ax^2+bx+c=0
then a=8,b=-10,c=-2
Using quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%2810+%2B-+sqrt%28+%28-10%29%5E2-4%2A8%2A-2+%29%29%2F%282%2A8%29+
x+=+%2810+%2B-+sqrt%28+100%2B64+%29%29%2F%2816%29+
x+=+%2810+%2B-+sqrt%28164%29%29%2F%2816%29+
x+=+%2810+%2B-+sqrt%284%2A41%29%29%2F%2816%29+
x+=+%2810+%2B-+2%2Asqrt%2841%29%29%2F%2816%29+
x+=+%285+%2B-+sqrt%2841%29%29%2F%288%29+


Hope this helps,
Prabhat