What are the solutions to the equation 5x^2+7x-66=0 ?

The solutions to the equation 5x^2+7x-66=0 are x=3,x=-22/5

Find the zeros of 5x^2+7x-66=0

The zeros of 5x^2+7x-66=0 are x=3,x=-22/5

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5 x^{2} + 7 x - 66 = 0

x = 3, x = - \frac{22}{5}

Decimal Notation

x = 3, x = - 4.4

Solution steps

5 x^{2} + 7 x - 66 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 7 \pm 7 ^{2} - 4 \cdot 5 ( - 66 )}{2 \cdot 5}

7^{2} - 4 \cdot 5 (- 66) = 37

x_{1, 2} = \frac{- 7 \pm 37}{2 \cdot 5}

Separate the solutions

x_{1} = \frac{- 7 + 37}{2 \cdot 5}, x_{2} = \frac{- 7 - 37}{2 \cdot 5}

x = \frac{- 7 + 37}{2 \cdot 5} : 3

x = \frac{- 7 - 37}{2 \cdot 5} : - \frac{22}{5}

The solutions to the quadratic equation are:

x = 3, x = - \frac{22}{5}

9 p^{3} - 7 + 9 p^{2} - 7 p

∣ 3 x - 6 ∣ \leq 12

- 9 (\frac{5}{8})

7 x + 10 < 2 x - 5

2 x - 22 < - 1.4

What are the solutions to the equation 5x^2+7x-66=0 ?
The solutions to the equation 5x^2+7x-66=0 are x=3,x=-22/5
Find the zeros of 5x^2+7x-66=0
The zeros of 5x^2+7x-66=0 are x=3,x=-22/5