Question

3
15. ab3 + 512. (factories)​

Answer 1

Answer:

(ab-8)(ab^2+16ab+64)

Step-by-step explanation:

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Answer 2

$\huge\purple{\mathbb{AnsWer:}}$

${ab}^{3} + 512 \\ = ( \sqrt[3]{a} b)^{3} + {8}^{3} \\ = ( \sqrt[3]{a}b + 8)( \sqrt[3]{a}b^{2} - \sqrt[3]{a}b \times 8 + {8}^{2} ) \\ = ( \sqrt[3]{a}b + 8)( {a}^{ \frac{2}{3} }b - 8 \sqrt[3]{a} b + 64)$

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