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tangare [24]
3 years ago
7

Can someone please help me with this question​

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

Answer:

21x^2-2x+1

Step-by-step explanation:

The area of shaded region= The area of the floor - area of the identical islands

The area of shaded region=(5x+1)^2-2*(2x)(x+3)=25x^2+1+10x-4x^2-12x=21x^2-2x+1

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