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Libby Cohen
Mathematics
18 June, 11:42
Multiply the polynomials (5x^2 + 2x + 8) (7x7 - 6)
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Jayda
18 June, 11:48
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If you mean the "x" is multiply, then your answer is 35x9+14x8+56x7-30x2-12x-48
Explanation:
= (5x2+2x+8) (7x7+-6)
= (5x2) (7x7) + (5x2) (-6) + (2x) (7x7) + (2x) (-6) + (8) (7x7) + (8) (-6)
=35x9-30x2+14x8-12x+56x7-48
=35x9+14x8+56x7-30x2-12x-48
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