Basic Math Examples

$(y^{2} - 3) (7 y)$

Step 1

Apply the distributive property.

$y^{2} (7 y) - 3 (7 y)$

Step 2

Simplify the expression.

Tap for more steps...

Step 2.1

Rewrite using the commutative property of multiplication.

$7 y^{2} y - 3 (7 y)$

Step 2.2

Multiply $7$ by $- 3$ .

$7 y^{2} y - 21 y$

Step 3

Multiply $y^{2}$ by $y$ by adding the exponents.

Tap for more steps...

Step 3.1

Move $y$ .

$7 (y \cdot y^{2}) - 21 y$

Step 3.2

Multiply $y$ by $y^{2}$ .

Tap for more steps...

Step 3.2.1

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

$7 (y^{1} y^{2}) - 21 y$

Step 3.2.2

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

$7 y^{1 + 2} - 21 y$

Step 3.3

Add $1$ and $2$ .

$7 y^{3} - 21 y$