katiekern5207
14.04.2021 •
Mathematics
Use a Rectangular Array to Model 2(10x + 7)
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Ответ:
B. 2x²+10x+4
Step-by-step explanation:
the perimeter =
2×(x²+3x-1+2x+3)
= 2×(x²+5x+2)
= 2x²+10x+4