SOLUTION: Find all real or imaginary solutions to the equation. 62) 2x2 + 10x = -7

Algebra ->  Coordinate-system -> SOLUTION: Find all real or imaginary solutions to the equation. 62) 2x2 + 10x = -7       Log On


   

Question 841866: Find all real or imaginary solutions to the equation.
62) 2x2 + 10x = -7
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

2x2 + 10x = -7

2x2 + 10x + 7 = 0    |Form:  a^2 + bx + c = 0

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

x+=+%28-10+%2B-+sqrt%28+100-56+%29%29%2F%284%29+

x+=+%28-10+%2B-+sqrt%28+44+%29%29%2F%284%29+

x+=+%28-10+%2B-+2sqrt%28+11+%29%29%2F%284%29+

 -0.8416876048223, -4.1583123951777