Answer:
10x^2+8,14x^2+2
Step-by-step explanation:
2x+4*5x+2, 2x*5x=10x^2, 4*2=8 Answer=10x^2+8
7x+2*2x+1, 7x*2x=14x^2, 2*1=2 Answer=14x^2+2
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