Pre-Algebra Examples

$(- \frac{2}{5} x) (5 y) (- 2 x)$

Step 1

Multiply $x$ by $x$ by adding the exponents.

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Step 1.1

Move $x$ .

$- \frac{2}{5} (x \cdot x) (5 y) \cdot - 2$

Step 1.2

Multiply $x$ by $x$ .

$- \frac{2}{5} x^{2} (5 y) \cdot - 2$

Step 2

Rewrite using the commutative property of multiplication.

$- \frac{2}{5} \cdot 5 x^{2} y \cdot - 2$

Step 3

Cancel the common factor of $5$ .

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Step 3.1

Move the leading negative in $- \frac{2}{5}$ into the numerator.

$\frac{- 2}{5} \cdot 5 x^{2} y \cdot - 2$

Step 3.2

Cancel the common factor.

$\frac{- 2}{5} \cdot 5 x^{2} y \cdot - 2$

Step 3.3

Rewrite the expression.

$- 2 x^{2} y \cdot - 2$

Step 4

Multiply $- 2$ by $- 2$ .

$4 x^{2} y$