Question

Find the area of a rectangle
Length=12x+ycm,breadth=4x+5cm

Answer 1

the area of rectangle is length * breath

so (12x+y)*(4x+5)

now solve it step by step

48x2 + 60x + 4yx + 5y

12(4x+5)+y(4x+5)

now 4x+5 is common and other is 12,+y so

X=-5/4 and y=-12

now put the values of X and y in length and breadth

length =12*-5/4+(-12)=118/4

breath=4*-5/4+5=10/4

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