Solve x^(2)/16 -5=4

Evaluate

\frac{x ^{2}}{16} - 5 = 4

Move the constant to the right-hand side and change its sign

\frac{x ^{2}}{16} = 4 + 5

Add the numbers

\frac{x ^{2}}{16} = 9

Cross multiply

x^{2} = 16 \times 9

Simplify the equation

x^{2} = 144

Take the root of both sides of the equation and remember to use both positive and negative roots

x = \pm 144

Simplify the expression

More Steps

x = \pm 12

Separate the equation into 2 possible cases

x = 12 x = - 12

Solution

x_{1} = - 12, x_{2} = 12

Solve the equation