Algebra Examples

$- {(7 i)}^{2}$

Step 1

Apply the product rule to $7 i$ .

$- (7^{2} i^{2})$

Step 2

Raise $7$ to the power of $2$ .

$- (49 i^{2})$

Step 3

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

$- (49 \cdot - 1)$

Step 4

Multiply $- (49 \cdot - 1)$ .

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Step 4.1

Multiply $49$ by $- 1$ .

$- - 49$

Step 4.2

Multiply $- 1$ by $- 49$ .

$49$

$49$

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