Question

The area of small rectangular plot is 84meter square . If the difference between it's length and breadth is 5m find its perimeter

Answer 1

breath or width ---- x m
length ------------- x+5 m

given: x(x+5) = 84
x^2 + 5x - 84 = 0
(x -7)(x + 12) = 0
x = 7 or x is a negative

width is 7, length is 12, so perimeter is .... ?

Answer 2

38 m

Answer 3

Thanks for your help but you have directly written the factorise number but you should give the whole process of factorisation again thank you for your help

Answer 4

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