What are the solutions to the equation ((-x^2)/2)+15=11 ?

The solutions to the equation ((-x^2)/2)+15=11 are x=2sqrt(2),x=-2sqrt(2)

Find the zeros of ((-x^2)/2)+15=11

The zeros of ((-x^2)/2)+15=11 are x=2sqrt(2),x=-2sqrt(2)

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(\frac{- x ^{2}}{2}) + 15 = 11

x = 22, x = - 22

Decimal Notation

x = 2.82842 \dots, x = - 2.82842 \dots

Solution steps

(\frac{- x ^{2}}{2}) + 15 = 11

Expand

(\frac{- x ^{2}}{2}) + 15 : - \frac{x ^{2}}{2} + 15

- \frac{x ^{2}}{2} + 15 = 11

Move

15

to the right side

- \frac{x ^{2}}{2} = - 4

Multiply both sides by

2

- x^{2} = - 8

Divide both sides by

- 1

x^{2} = 8

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

x = 8, x = - 8

8 = 22

- 8 = - 22

x = 22, x = - 22

x^{2} - 3 x + 2 = 1

a, f = a^{2} x + b

5 w^{2} - 20 w = 0

y^{2} - 3 y = 40

x^{2} - 2 x - 9 = 0

What are the solutions to the equation ((-x^2)/2)+15=11 ?
The solutions to the equation ((-x^2)/2)+15=11 are x=2sqrt(2),x=-2sqrt(2)
Find the zeros of ((-x^2)/2)+15=11
The zeros of ((-x^2)/2)+15=11 are x=2sqrt(2),x=-2sqrt(2)