What are the solutions to the equation 8x-x^2=15 ?

The solutions to the equation 8x-x^2=15 are x=3,x=5

Find the zeros of 8x-x^2=15

The zeros of 8x-x^2=15 are x=3,x=5

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8 x - x^{2} = 15

x = 3, x = 5

Solution steps

8 x - x^{2} = 15

Move

15

to the left side

8 x - x^{2} - 15 = 0

Write in the standard form

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

- x^{2} + 8 x - 15 = 0

Solve with the quadratic formula

x_{1, 2} = \frac{- 8 \pm 8 ^{2} - 4 ( - 1 ) ( - 15 )}{2 ( - 1 )}

8^{2} - 4 (- 1) (- 15) = 2

x_{1, 2} = \frac{- 8 \pm 2}{2 ( - 1 )}

Separate the solutions

x_{1} = \frac{- 8 + 2}{2 ( - 1 )}, x_{2} = \frac{- 8 - 2}{2 ( - 1 )}

x = \frac{- 8 + 2}{2 ( - 1 )} : 3

x = \frac{- 8 - 2}{2 ( - 1 )} : 5

The solutions to the quadratic equation are:

x = 3, x = 5

1 5^{\frac{3}{2}}

166 = - 2 (- 5 + 2 x) - 9 x

- \frac{2}{9} f = 12

2^{\frac{9}{2}}

4 x^{2} - 3 x

What are the solutions to the equation 8x-x^2=15 ?
The solutions to the equation 8x-x^2=15 are x=3,x=5
Find the zeros of 8x-x^2=15
The zeros of 8x-x^2=15 are x=3,x=5