Algebra Examples

$7 y - 2 y i^{2}$

Step 1

Simplify each term.

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Step 1.1

Rewrite $i^{2}$ as $- 1$ .

$7 y - 2 y \cdot - 1$

Step 1.2

Multiply $- 1$ by $- 2$ .

$7 y + 2 y$

$7 y + 2 y$

Step 2

Add $7 y$ and $2 y$ .

$9 y$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$