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Question
Simplify:
2 (3x2 – 4x – 8) – (3 – 5x – 2x2)
Solution
2 (3x2 – 4x – 8) – (3 – 5x – 2x2)
= (6x2 – 8x – 16) – (3 – 5x – 2x2)
= 6x2 – 8x – 16 – 3 + 5x + 2x2
= 6x2 + 2x2 – 8x + 5x – 16 – 3
= 8x2 – 3x – 19
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