Find the perimetre of a rectangle whose length is -6y+3x and breadth is 7y - 2x.
Answers
Answered by
3
Answer:
-42y^2+12xy+21xy-6x^2
= -42y^2+33xy-6x^2
Answered by
2
Answer:
-6x²-42y²+33xy
or
-(6x²+42y²-33xy)
Explanation:
length,l=(-6y+3x)
breadth,b=(7y-2x)
Perimeter of a rectangle=l×b
=(-6y+3x)(7y-2x)
=-42y²+12xy+21xy-6x²
=-6x²-42y²+33xy
or
=-(6x²+42y²-33xy)
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