2 years ago

A

Mathematics

1 answer:

inna [77]2 years ago

7 0

Answer: $5x^4+x^2-6x+12$

Step-by-step explanation:

Given

The area of the rectangular piece of wood is $A_1=5x^4+3x^2-6x+8$

The area of each circle is $A_2=x^2-2$

Area of the remaining piece of wood

$\Rightarrow A_1-2A_2\\\Rightarrow 5x^4+3x^2-6x+8-2(x^2-2)=5x^4+x^2-6x+12$

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