What are the solutions to the equation 4x^2-211=-15 ?

The solutions to the equation 4x^2-211=-15 are x=7,x=-7

Find the zeros of 4x^2-211=-15

The zeros of 4x^2-211=-15 are x=7,x=-7

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4 x^{2} - 211 = - 15

x = 7, x = - 7

Solution steps

4 x^{2} - 211 = - 15

Move

211

to the right side

4 x^{2} = 196

Divide both sides by

4

x^{2} = 49

For

x^{2} = f (a)

the solutions are

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

x = 49, x = - 49

49 = 7

- 49 = - 7

x = 7, x = - 7

x, 4 x^{2} + k x + 1 = 0

2 n^{2} - 9 = 119

- 5 x^{2} + 7 x = 0

x, x^{2} - 11 x + 18 = 0

(x + 10) (x - 9) = - 78

What are the solutions to the equation 4x^2-211=-15 ?
The solutions to the equation 4x^2-211=-15 are x=7,x=-7
Find the zeros of 4x^2-211=-15
The zeros of 4x^2-211=-15 are x=7,x=-7