Question

the area of the rectangular lawn is equal to X square + 12 x + 35 square metre find the length and breadth of the rectangular lawn if the cost of the fencing this loan with wires is rupees 3000 @ 25 rupees per metre then find out the value of x and hence actual dimension of the rectangular lawn please ans this 1st que fast

Answer 1

area of rectangle=x²+12x+35
=x²+7x+5x+35
=x(x+7)+5(x+7)
=(x+7)(x+5)
thus length=(x+7) and breadth=(x+5)
perimeter=total cost/cost per metre
2(l+b)=3000/25
2(x+7+x+5)=120
2x+12=120/2
2x+12=60
2x=60-12
x=48/3=24
There fore value of Length (x+7)=24+7=31m and
breadth(x+5)=24+5=29m
THANK ME IF IT WAS HELPFUL

Answer 2

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