Answer:
1. 15x²+56x-128cm
2. 3x²+6x-140dm
3. 15x²+36x-256
Step-by-step explanation:
FOIL METHOD
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Answers & Comments
Answer:
1. 15x²+56x-128cm
2. 3x²+6x-140dm
3. 15x²+36x-256
Step-by-step explanation:
FOIL METHOD