Find the indicated product.
1. (10+3d) (10-3d)
2. (w+8) (w+9)
3. 2x (x-3) + 15
4. (2-3b)²-2
5. 5x + (x+7) (x-7)
Answers
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Step-by-step explanation:
1. 100-30d+30d-9d^2==>100-9d^2
2. w^2+9w+8w+72==>w^2+17w+72
3. 2x^2-6x+15
4. 4+9b^2-12b-2==>9b^2-12b+2
5. 5x+x^2-49
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