What are the solutions to the equation x^2+12=21 ?

The solutions to the equation x^2+12=21 are x=3,x=-3

Find the zeros of x^2+12=21

The zeros of x^2+12=21 are x=3,x=-3

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x^{2} + 12 = 21

x = 3, x = - 3

Solution steps

x^{2} + 12 = 21

Move

12

to the right side

x^{2} = 9

For

x^{2} = f (a)

the solutions are

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

x = 9, x = - 9

9 = 3

- 9 = - 3

x = 3, x = - 3

x^{2} = 5 x - 6

x^{2} - 3 x - 6 = 0

x^{2} + 2 x + 1 = 7 x - 5

x^{2} - 6 + 13 = 0

a, a^{2} + b^{2} = 6 ab

What are the solutions to the equation x^2+12=21 ?
The solutions to the equation x^2+12=21 are x=3,x=-3
Find the zeros of x^2+12=21
The zeros of x^2+12=21 are x=3,x=-3