Solve 16a^(2)-144

Evaluate

16 a^{2} - 144

To find the roots of the expression,set the expression equal to 0

16 a^{2} - 144 = 0

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

16 a^{2} = 0 + 144

Removing 0 doesn't change the value,so remove it from the expression

16 a^{2} = 144

Divide both sides

\frac{16 a ^{2}}{16} = \frac{144}{16}

Divide the numbers

a^{2} = \frac{144}{16}

Divide the numbers

More Steps

a^{2} = 9

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

a = \pm 9

Simplify the expression

More Steps

a = \pm 3

Separate the equation into 2 possible cases

a = 3 a = - 3

Solution

a_{1} = - 3, a_{2} = 3

Factor the expression