What are the solutions to the equation 4+7x-15x^2=0 ?

The solutions to the equation 4+7x-15x^2=0 are x=-1/3 ,x= 4/5

Find the zeros of 4+7x-15x^2=0

The zeros of 4+7x-15x^2=0 are x=-1/3 ,x= 4/5

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4 + 7 x - 15 x^{2} = 0

x = - \frac{1}{3}, x = \frac{4}{5}

Decimal Notation

x = - 0.33333 \dots, x = 0.8

Solution steps

4 + 7 x - 15 x^{2} = 0

Write in the standard form

a x^{2} + b x + c = 0

- 15 x^{2} + 7 x + 4 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 7 \pm 7 ^{2} - 4 ( - 15 ) \cdot 4}{2 ( - 15 )}

7^{2} - 4 (- 15) \cdot 4 = 17

x_{1, 2} = \frac{- 7 \pm 17}{2 ( - 15 )}

Separate the solutions

x_{1} = \frac{- 7 + 17}{2 ( - 15 )}, x_{2} = \frac{- 7 - 17}{2 ( - 15 )}

x = \frac{- 7 + 17}{2 ( - 15 )} : - \frac{1}{3}

x = \frac{- 7 - 17}{2 ( - 15 )} : \frac{4}{5}

The solutions to the quadratic equation are:

x = - \frac{1}{3}, x = \frac{4}{5}

(x - 18)^{2} = 1

- x^{2} (2) - 4 + 4 (2) - 2 x = 0

r^{2} + 49 r = 0

- 3 x^{2} + 7 = 0

6 x^{2} + 7 x = 3

What are the solutions to the equation 4+7x-15x^2=0 ?
The solutions to the equation 4+7x-15x^2=0 are x=-1/3 ,x= 4/5
Find the zeros of 4+7x-15x^2=0
The zeros of 4+7x-15x^2=0 are x=-1/3 ,x= 4/5