Step-by-step explanation:
→ x³ – 64
→ x³ – 4³
→ (x - 4) × (x² + x × 4 + 4²)
•••
Explanation:
(i). 4³
→ 4 × 4 × 4
→ 16 × 4
→ 64 ✓
----
(ii). Factor it by using:
→ a³ - b³ = (a - b)(a² + ab + b²)
Hope this help.
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Answers & Comments
Step-by-step explanation:
→ x³ – 64
→ x³ – 4³
→ (x - 4) × (x² + x × 4 + 4²)
→ (x - 4) × (x² + 4x + 16) ✓
•••
Explanation:
(i). 4³
→ 4 × 4 × 4
→ 16 × 4
→ 64 ✓
----
(ii). Factor it by using:
→ a³ - b³ = (a - b)(a² + ab + b²)
----
Hope this help.