P(x) = 3x²-x+3 ; Q(x) = -x²+4x-10 What is P(x) + Q(x)?
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P (x)+Q (x) = 3x²-x+3 + [ -x²+4x-10]
= 3x²-x+3-x²+4x-10
= 2x²+3x-7
= 3x²-x+3-x²+4x-10
= 2x²+3x-7
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