Pre-Algebra Examples

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12$ , $8 x^{4} (- 6 x^{5} + 8 x^{3} + 7)$

Step 1

Apply the distributive property.

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 x^{4} (- 6 x^{5}) + 8 x^{4} (8 x^{3}) + 8 x^{4} \cdot 7$

Step 2

Simplify.

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Step 2.1

Rewrite using the commutative property of multiplication.

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 x^{4} x^{5} + 8 x^{4} (8 x^{3}) + 8 x^{4} \cdot 7$

Step 2.2

Rewrite using the commutative property of multiplication.

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 x^{4} x^{5} + 8 \cdot 8 x^{4} x^{3} + 8 x^{4} \cdot 7$

Step 2.3

Multiply $7$ by $8$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 x^{4} x^{5} + 8 \cdot 8 x^{4} x^{3} + 56 x^{4}$

Step 3

Simplify each term.

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Step 3.1

Multiply $x^{4}$ by $x^{5}$ by adding the exponents.

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Step 3.1.1

Move $x^{5}$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 (x^{5} x^{4}) + 8 \cdot 8 x^{4} x^{3} + 56 x^{4}$

Step 3.1.2

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

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 x^{5 + 4} + 8 \cdot 8 x^{4} x^{3} + 56 x^{4}$

Step 3.1.3

Add $5$ and $4$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 + 8 \cdot - 6 x^{9} + 8 \cdot 8 x^{4} x^{3} + 56 x^{4}$

Step 3.2

Multiply $8$ by $- 6$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 - 48 x^{9} + 8 \cdot 8 x^{4} x^{3} + 56 x^{4}$

Step 3.3

Multiply $x^{4}$ by $x^{3}$ by adding the exponents.

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Step 3.3.1

Move $x^{3}$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 - 48 x^{9} + 8 \cdot 8 (x^{3} x^{4}) + 56 x^{4}$

Step 3.3.2

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

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 - 48 x^{9} + 8 \cdot 8 x^{3 + 4} + 56 x^{4}$

Step 3.3.3

Add $3$ and $4$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 - 48 x^{9} + 8 \cdot 8 x^{7} + 56 x^{4}$

Step 3.4

Multiply $8$ by $8$ .

$9 z^{5} + 11 z^{4} - 2 z^{3} + 12 - 48 x^{9} + 64 x^{7} + 56 x^{4}$

Step 4

Since there are no common prime factors, the GCF is $1$ .

$1$