Basic Math Examples

$343 c^{6} - 64 d^{6}$

Step 1

Rewrite $343 c^{6}$ as ${(7 c^{2})}^{3}$ .

${(7 c^{2})}^{3} - 64 d^{6}$

Step 2

Rewrite $64 d^{6}$ as ${(4 d^{2})}^{3}$ .

${(7 c^{2})}^{3} - {(4 d^{2})}^{3}$

Step 3

Since both terms are perfect cubes, factor using the difference of cubes formula, $a^{3} - b^{3} = (a - b) (a^{2} + a b + b^{2})$ where $a = 7 c^{2}$ and $b = 4 d^{2}$ .

$(7 c^{2} - (4 d^{2})) ({(7 c^{2})}^{2} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4

Simplify.

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Step 4.1

Multiply $4$ by $- 1$ .

$(7 c^{2} - 4 d^{2}) ({(7 c^{2})}^{2} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4.2

Apply the product rule to $7 c^{2}$ .

$(7 c^{2} - 4 d^{2}) (7^{2} {(c^{2})}^{2} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4.3

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

$(7 c^{2} - 4 d^{2}) (49 {(c^{2})}^{2} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4.4

Multiply the exponents in ${(c^{2})}^{2}$ .

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Step 4.4.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$(7 c^{2} - 4 d^{2}) (49 c^{2 \cdot 2} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4.4.2

Multiply $2$ by $2$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 7 c^{2} (4 d^{2}) + {(4 d^{2})}^{2})$

Step 4.5

Rewrite using the commutative property of multiplication.

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 7 \cdot 4 c^{2} d^{2} + {(4 d^{2})}^{2})$

Step 4.6

Multiply $7$ by $4$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 28 c^{2} d^{2} + {(4 d^{2})}^{2})$

Step 4.7

Apply the product rule to $4 d^{2}$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 28 c^{2} d^{2} + 4^{2} {(d^{2})}^{2})$

Step 4.8

Raise $4$ to the power of $2$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 28 c^{2} d^{2} + 16 {(d^{2})}^{2})$

Step 4.9

Multiply the exponents in ${(d^{2})}^{2}$ .

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Step 4.9.1

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 28 c^{2} d^{2} + 16 d^{2 \cdot 2})$

Step 4.9.2

Multiply $2$ by $2$ .

$(7 c^{2} - 4 d^{2}) (49 c^{4} + 28 c^{2} d^{2} + 16 d^{4})$