SOLUTION: Please solve the following equations using the quadratic formula. 4x squared +3x=5 3x squared =3-5x

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please solve the following equations using the quadratic formula. 4x squared +3x=5 3x squared =3-5x       Log On


   

Question 360642: Please solve the following equations using the quadratic formula.
4x squared +3x=5

3x squared =3-5x
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

4x^2 + 3x = 5

solve using the quadratic formula

4x^2 + 3x - 5 = 0

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

x+=+%28-3+%2B-+sqrt%28+3%5E2-4%2A4%2A%28-5%29+%29%29%2F%288%29+

x+=+%28-3+%2B-+sqrt%28+9+%2B+80+%29%29%2F%288%29+

x+=+%28-3+%2B-+sqrt%2889%29%29%2F%288%29+



3x^2 = 3-5x 

solve using the quadratic formula

3x^2+ 5x -3 = 0 

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

x+=+%28-5+%2B-+sqrt%28+5%5E2-4%2A3%2A%28-3%29+%29%29%2F%286%29+

x+=+%28-5+%2B-+sqrt%2825%2B36+%29%29%2F%286%29+

x+=+%28-5+%2B-+sqrt%2861%29%29%2F%286%29+

Will leave it up to you to complete steps necessary with your calculator to have the solutions

in the format required in your class.