if a = 3x²+2x-7 and b = 7x³-3x+4 then find a - b
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Answer:
3x²+5x-7x³-11
Step-by-step explanation:
(3x²+2x-7)-(7x³-3x+4)
3x²+2x-7-7x³+3x-4
3x²+5x-7x³-11
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