What are the solutions to the equation -5x^2-87x-391=3x-6 ?

The solutions to the equation -5x^2-87x-391=3x-6 are x=-11,x=-7

Find the zeros of -5x^2-87x-391=3x-6

The zeros of -5x^2-87x-391=3x-6 are x=-11,x=-7

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- 5 x^{2} - 87 x - 391 = 3 x - 6

x = - 11, x = - 7

Solution steps

- 5 x^{2} - 87 x - 391 = 3 x - 6

Move

6

to the left side

- 5 x^{2} - 87 x - 385 = 3 x

Move

3 x

to the left side

- 5 x^{2} - 90 x - 385 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 90 ) \pm ( - 90 ) ^{2} - 4 ( - 5 ) ( - 385 )}{2 ( - 5 )}

(- 90)^{2} - 4 (- 5) (- 385) = 20

x_{1, 2} = \frac{- ( - 90 ) \pm 20}{2 ( - 5 )}

Separate the solutions

x_{1} = \frac{- ( - 90 ) + 20}{2 ( - 5 )}, x_{2} = \frac{- ( - 90 ) - 20}{2 ( - 5 )}

x = \frac{- ( - 90 ) + 20}{2 ( - 5 )} : - 11

x = \frac{- ( - 90 ) - 20}{2 ( - 5 )} : - 7

The solutions to the quadratic equation are:

x = - 11, x = - 7

x^{2} + 0.9 x + 0.81 = 0

4 x^{2} - x - 6 = 0

- x^{2} - 3 x + 10 = 0

- x^{2} + 2 x + 3

4 (3 x^{2} - 1) = 0

What are the solutions to the equation -5x^2-87x-391=3x-6 ?
The solutions to the equation -5x^2-87x-391=3x-6 are x=-11,x=-7
Find the zeros of -5x^2-87x-391=3x-6
The zeros of -5x^2-87x-391=3x-6 are x=-11,x=-7