What are the solutions to the equation 7x^2-18=45 ?

The solutions to the equation 7x^2-18=45 are x=3,x=-3

Find the zeros of 7x^2-18=45

The zeros of 7x^2-18=45 are x=3,x=-3

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7 x^{2} - 18 = 45

x = 3, x = - 3

Solution steps

7 x^{2} - 18 = 45

Move

18

to the right side

7 x^{2} = 63

Divide both sides by

7

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

9 x^{2} - 6 x + 7 = 0

- 0.5 x^{2} + 2 x + 1.5 = 0

x^{2} + 5 x + 9 = 0

1 - 2 x + x^{2} = 0

a, a^{2} y^{2} + 3 ab y + 2 b^{2} = 0

What are the solutions to the equation 7x^2-18=45 ?
The solutions to the equation 7x^2-18=45 are x=3,x=-3
Find the zeros of 7x^2-18=45
The zeros of 7x^2-18=45 are x=3,x=-3