What are the solutions to the equation 10x^2-40=0 ?

The solutions to the equation 10x^2-40=0 are x=2,x=-2

Find the zeros of 10x^2-40=0

The zeros of 10x^2-40=0 are x=2,x=-2

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10 x^{2} - 40 = 0

x = 2, x = - 2

Solution steps

10 x^{2} - 40 = 0

Move

40

to the right side

10 x^{2} = 40

Divide both sides by

10

x^{2} = 4

For

x^{2} = f (a)

the solutions are

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

x = 4, x = - 4

4 = 2

- 4 = - 2

x = 2, x = - 2

4 (x + 9)^{2} + 8 = 32

(x - 1) (x - 5) = - 3

3 x^{2} + 48 x = - 204

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

5 x^{2} - 10 x - 13 = 9 x - 9

What are the solutions to the equation 10x^2-40=0 ?
The solutions to the equation 10x^2-40=0 are x=2,x=-2
Find the zeros of 10x^2-40=0
The zeros of 10x^2-40=0 are x=2,x=-2