write an expression for area of a rectangle using x and y.
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Answer:
x*y
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Answer:
The Answer is 3x^2+13x+12
Step-by-step explanation:
Area of Rectangle = length x breadth
= (x+3) (3x+4)
= x(3x+4)+3(3x+4)
= 3x^2+4x+9x+12
= 3x^2+13x+12
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