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Subtract the Polynomials (x3+7xy4y2)(8x3+4xy+y2)\left( x ^ { 3 } + 7 x y - 4 y ^ { 2 } \right) - \left( 8 x ^ { 3 } + 4 x y + y ^ { 2 } \right)

Question 104

Multiple Choice

Subtract the polynomials. Assume all variable exponents represent whole numbers.
- (x3+7xy4y2) (8x3+4xy+y2) \left( x ^ { 3 } + 7 x y - 4 y ^ { 2 } \right) - \left( 8 x ^ { 3 } + 4 x y + y ^ { 2 } \right)


A) 9x3+3xy5y29 x ^ { 3 } + 3 x y - 5 y ^ { 2 }
B) 7x33xy3y27 x ^ { 3 } - 3 x y - 3 y ^ { 2 }
C) 7x3+3xy3y2- 7 x ^ { 3 } + 3 x y - 3 y ^ { 2 }
D) 7x3+3xy5y2- 7 x ^ { 3 } + 3 x y - 5 y ^ { 2 }

Correct Answer:

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