What are the solutions to the equation 7x^2-9=0 ?

The solutions to the equation 7x^2-9=0 are x= 3/(sqrt(7)),x=-3/(sqrt(7))

Find the zeros of 7x^2-9=0

The zeros of 7x^2-9=0 are x= 3/(sqrt(7)),x=-3/(sqrt(7))

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7 x^{2} - 9 = 0

x = \frac{3}{7}, x = - \frac{3}{7}

Decimal Notation

x = 1.13389 \dots, x = - 1.13389 \dots

Solution steps

7 x^{2} - 9 = 0

Move

9

to the right side

7 x^{2} = 9

Divide both sides by

7

x^{2} = \frac{9}{7}

For

x^{2} = f (a)

the solutions are

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

x = \frac{9}{7}, x = - \frac{9}{7}

\frac{9}{7} = \frac{3}{7}

- \frac{9}{7} = - \frac{3}{7}

x = \frac{3}{7}, x = - \frac{3}{7}

6 x (x - 1) + 4 (x + 4) (x - 1) = (2 x + 2) (x + 4)

x^{2} + 1 = - 99

x^{2} - x - 20 = 0

2 x^{2} - 3 x = 4

x^{2} - 14 x - 40 = 0

What are the solutions to the equation 7x^2-9=0 ?
The solutions to the equation 7x^2-9=0 are x= 3/(sqrt(7)),x=-3/(sqrt(7))
Find the zeros of 7x^2-9=0
The zeros of 7x^2-9=0 are x= 3/(sqrt(7)),x=-3/(sqrt(7))