Pre-Algebra Examples

$- 10 i \cdot (- 7 i)$

Step 1

Simplify and reorder the polynomial.

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Step 1.1

Multiply $- 10 i (- 7 i)$ .

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Step 1.1.1

Multiply $- 7$ by $- 10$ .

$70 i i$

Step 1.1.2

Raise $i$ to the power of $1$ .

$70 (i^{1} i)$

Step 1.1.3

Raise $i$ to the power of $1$ .

$70 (i^{1} i^{1})$

Step 1.1.4

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$70 i^{1 + 1}$

Step 1.1.5

Add $1$ and $1$ .

$70 i^{2}$

Step 1.2

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

$70 \cdot - 1$

Step 1.3

Multiply $70$ by $- 1$ .

$- 70$

Step 2

The expression is constant, which means it can be rewritten with a factor of $x^{0}$ . The degree is the largest exponent on the variable.

$0$