the lenth of rectangle is greater than twice it's breadth by 2cm.area of rectangle is 24cm^2.find length and breadth
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Answer:
let breadth =x
length = 2+2x
area of rectangle =24cm²
Step-by-step explanation:
area of rectangle= length×breadth
24 = (2+2x)× X
24 = 2x+2x²
0 = 2x²+2x-24
0 = 2(x²+x -12)
0/2 = x² + x-12
0 = x²+4x-3x-12
0 = x(x+4)-3(x+4)
0 = (x+4)(x-3)
X = -4 , 3
breadth = 3 cm
length = 2+2(3)
= 2+6
= 8 cm
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