What are the solutions to the equation 1/2 x^2-7=74 ?

The solutions to the equation 1/2 x^2-7=74 are x=9sqrt(2),x=-9sqrt(2)

Find the zeros of 1/2 x^2-7=74

The zeros of 1/2 x^2-7=74 are x=9sqrt(2),x=-9sqrt(2)

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\frac{1}{2} x^{2} - 7 = 74

x = 92, x = - 92

Decimal Notation

x = 12.72792 \dots, x = - 12.72792 \dots

Solution steps

\frac{1}{2} x^{2} - 7 = 74

Move

7

to the right side

\frac{1}{2} x^{2} = 81

Multiply both sides by

2

x^{2} = 162

For

x^{2} = f (a)

the solutions are

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

x = 162, x = - 162

162 = 92

- 162 = - 92

x = 92, x = - 92

u^{2} = u + 6

16 x^{2} + 24 x + 9 = 81

n^{2} = 121

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

(a x + 4) (a x - 4) = 25 x^{2} - 16

What are the solutions to the equation 1/2 x^2-7=74 ?
The solutions to the equation 1/2 x^2-7=74 are x=9sqrt(2),x=-9sqrt(2)
Find the zeros of 1/2 x^2-7=74
The zeros of 1/2 x^2-7=74 are x=9sqrt(2),x=-9sqrt(2)