What are the solutions to the equation 5x^2-7x-90=0 ?

The solutions to the equation 5x^2-7x-90=0 are x=5,x=-18/5

Find the zeros of 5x^2-7x-90=0

The zeros of 5x^2-7x-90=0 are x=5,x=-18/5

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5 x^{2} - 7 x - 90 = 0

x = 5, x = - \frac{18}{5}

Decimal Notation

x = 5, x = - 3.6

Solution steps

5 x^{2} - 7 x - 90 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- ( - 7 ) \pm ( - 7 ) ^{2} - 4 \cdot 5 ( - 90 )}{2 \cdot 5}

(- 7)^{2} - 4 \cdot 5 (- 90) = 43

x_{1, 2} = \frac{- ( - 7 ) \pm 43}{2 \cdot 5}

Separate the solutions

x_{1} = \frac{- ( - 7 ) + 43}{2 \cdot 5}, x_{2} = \frac{- ( - 7 ) - 43}{2 \cdot 5}

x = \frac{- ( - 7 ) + 43}{2 \cdot 5} : 5

x = \frac{- ( - 7 ) - 43}{2 \cdot 5} : - \frac{18}{5}

The solutions to the quadratic equation are:

x = 5, x = - \frac{18}{5}

3 x^{2} - 25 x - 18

\frac{4}{11} n = \frac{16}{55}

2 x - 2 \geq - 12 and - 3 x > - 9

(81)^{\frac{1}{4}}

3 (x - 1) = 7

What are the solutions to the equation 5x^2-7x-90=0 ?
The solutions to the equation 5x^2-7x-90=0 are x=5,x=-18/5
Find the zeros of 5x^2-7x-90=0
The zeros of 5x^2-7x-90=0 are x=5,x=-18/5