4X2+5x+6,x2+1,5x3+4x+3
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Answer:
5x³+5x²+9x+10
Step-by-step explanation:
=4x²+5x+6+x²+1+5x³+4x+3
=4x²+x²+5x+4x+6+3+1+5x³
=5x²+9x+10+5x³
=5x³+5x²+9x+10
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