What are the solutions to the equation 81x^2=49 ?

The solutions to the equation 81x^2=49 are x= 7/9 ,x=-7/9

Find the zeros of 81x^2=49

The zeros of 81x^2=49 are x= 7/9 ,x=-7/9

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81 x^{2} = 49

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

Decimal Notation

x = 0.77777 \dots, x = - 0.77777 \dots

Solution steps

81 x^{2} = 49

Divide both sides by

81

x^{2} = \frac{49}{81}

For

x^{2} = f (a)

the solutions are

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

x = \frac{49}{81}, x = - \frac{49}{81}

\frac{49}{81} = \frac{7}{9}

- \frac{49}{81} = - \frac{7}{9}

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

2 n^{2} = 10 n + 48

3 x^{2} + x = - 9

x^{2} + 6 x + 117 = 0

a^{2} - 9 a = 0

30 x^{2} + 13 x = - 10

What are the solutions to the equation 81x^2=49 ?
The solutions to the equation 81x^2=49 are x= 7/9 ,x=-7/9
Find the zeros of 81x^2=49
The zeros of 81x^2=49 are x= 7/9 ,x=-7/9