(4. Subtract the following algebraic expressions vertically. a) (7x2 - 4xy + 5y2 - 5x + 2y) - (5x + 4y2 + 2y - 4) b) (7x?y - xy + 3x - 2) - (5x”y + 5xy - 6x-7) c) (2xy + 4x + 2) - (7 - 5x2 + x) 212)-(-12b2 - 7a2b2 - 12)
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Answer:
a) 7x²-4xy-y²+4
b) 2x²y-6xy+9x+5
c) 2xy+3x-5-5x²
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Answer:
option b is the correct answe
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