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MathCrazyFool
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Quadratic Equations:
Mr Tan is 5 times as old as his son, Alex. Two years ago, the sum of the squares of their ages was 1114. Find their present age.
 one year ago
 one year ago
MathCrazyFool Group Title
Quadratic Equations: Mr Tan is 5 times as old as his son, Alex. Two years ago, the sum of the squares of their ages was 1114. Find their present age.
 one year ago
 one year ago

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RolyPoly Group TitleBest ResponseYou've already chosen the best response.2
Let x be the present ago of Mr Tan's son. So, Mr Tan is no 5x years old Two years ago, the age of Mr Tan is 5x2 and the age of his son is x2. From the question '' the sum of the squares of their ages was 1114.'', we get (5x2)^2 + (x2)^2 = 1114 , which is a quadratic equation. Got it?
 one year ago

vick2075 Group TitleBest ResponseYou've already chosen the best response.0
son is 7 years old and Mr tan is 35
 one year ago
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