the product of anil age in years 3 year ago and his age in years 7 years later is 56 formulated a quadratic equation to find his present age x
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Let the present age of Anil be x years.
his age before 3 years = (x-3)years
And after 7 years =(x+7) years.
Therefore, as per condition,
(x-3)(x+7) = 56
x^2+ 7x - 3x - 21 = 56
x^2 + 4x - 21 -56 =0
x^2 + 4x - 77 =0
Hope helped. ....
his age before 3 years = (x-3)years
And after 7 years =(x+7) years.
Therefore, as per condition,
(x-3)(x+7) = 56
x^2+ 7x - 3x - 21 = 56
x^2 + 4x - 21 -56 =0
x^2 + 4x - 77 =0
Hope helped. ....
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