The two adjacent sides of a rectangle are
2x2 - 5xy.+ 3z2 and 4xy - x2 - 22.
Find its perimeter.
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Step-by-step explanation:
perimeter = 2(l+b)
2 ( 2x² - 5xy + 3z² + 4xy - x² - 22)
= 2 ( x² - xy + 3z² - 22 )
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