Question

find the area of rectangle of length (a+b+c) and breadth (a+b-c) and evaluate the result for a=1,b=-1,c=2​

Answer 1

Answer:

Step-by-step explanation:

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checkout the attached file

Answer 2

Answer:

Step-by-step explanation:

L=a+b+c

B=a+b-c

area(a+b+c)(a+b-c)

=(1-1+2)(1-1-2)

=2*-2

=-4 cm²