What are the solutions to the equation 2x^2-61=139 ?

The solutions to the equation 2x^2-61=139 are x=10,x=-10

Find the zeros of 2x^2-61=139

The zeros of 2x^2-61=139 are x=10,x=-10

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2 x^{2} - 61 = 139

x = 10, x = - 10

Solution steps

2 x^{2} - 61 = 139

Move

61

to the right side

2 x^{2} = 200

Divide both sides by

2

x^{2} = 100

For

x^{2} = f (a)

the solutions are

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

x = 100, x = - 100

100 = 10

- 100 = - 10

x = 10, x = - 10

a^{2} - 64 = 0

- 4 x^{2} + 24 x

- 8 + 81 x^{2} = 56

3 x^{2} - 2 x + 1 = 4

x^{2} - 18 x + 16 = 0

What are the solutions to the equation 2x^2-61=139 ?
The solutions to the equation 2x^2-61=139 are x=10,x=-10
Find the zeros of 2x^2-61=139
The zeros of 2x^2-61=139 are x=10,x=-10