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Factorisation by Regrouping Terms

If length of ...

Question

If length of rectangle is (5xy-2x) and breadth is (7xyz+8xz). Find the perimeter of Rectangle.

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Solution

The perimeter of rectangle = 2(L + B)
= 2 $\times$ {(5xy -2x) + (7xyz+8xz)}
= 2 $\times$ (5xy - 2x + 7xyz + 8xz)
Take x common out,
= 2x (5y - 1 + 7yz + 8z)
No further simplification is possible.

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