Question

the lenth of the rectangle is 10 cm more than its breadth area is 144cm sq find its lenth and breadth​

Answer 1

Answer:

Let the breadth be x

So, length = x+10

According to the question,

x(x+10) = 144

=> x^2+10x = 144

=> x^2+10x-144 = 0

=> x^2+18x-8x-144 = 0

=> x(x+18)-8(x+18) = 0

=> (x+18)(x-8) = 0

=> x=8 cm (As breadth cannot be -ve)

So, length = (10+8) cm = 18cm

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