Solve l^222-1 - ScanMath

Evaluate

l^{2} \times 22 - 1

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

l^{2} \times 22 - 1 = 0

Use the commutative property to reorder the terms

22 l^{2} - 1 = 0

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

22 l^{2} = 0 + 1

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

22 l^{2} = 1

Divide both sides

\frac{22 l ^{2}}{22} = \frac{1}{22}

Divide the numbers

l^{2} = \frac{1}{22}

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

l = \pm \frac{1}{22}

Simplify the expression

More Steps

l = \pm \frac{22}{22}

Separate the equation into 2 possible cases

l = \frac{22}{22} l = - \frac{22}{22}

Solution

l_{1} = - \frac{22}{22}, l_{2} = \frac{22}{22}

Alternative Form

l_{1} \approx - 0.213201, l_{2} \approx 0.213201

Simplify the expression