Step-by-step explanation:
= 2x² + 6x - 8
= 2(x² + 3x - 4)
= 2(x² + 4x - x - 4)
= 2(x × (x + 4) – (x + 4))
•••
Proof:
= 2x² + 2 × 3x - 2 × 4
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Answers & Comments
Step-by-step explanation:
= 2x² + 6x - 8
= 2(x² + 3x - 4)
= 2(x² + 4x - x - 4)
= 2(x × (x + 4) – (x + 4))
= 2(x + 4) × (x - 1) ✓
•••
Proof:
= 2(x² + 3x - 4)
= 2x² + 2 × 3x - 2 × 4
= 2x² + 6x - 8 ✓