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Problems based on quadratic equation
Four years ago father's age was one year less than 3 times square of son's age.After five years his age will be one year less than three times son's.Find their present age.
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*** son's age **** years *** ** ********* **** be 3x^2 ** The *** ******* - * * * *** ****** and * * 4 for ******** **** ***** *** **** ** ************ father * ***** * 1Also ****** *** * ***** * ** ** ********** *** *** ********* ***** -1 * (3x^2 *** * 93×+27-1=3x^1 -1+93x^2 *** -18=0X^2-x-6=0x^2-3x+2x-6=0X ******* ************************* x= ** ** x=3X=3 ** appropriate present ******** age3x3^2 * 1 ** * ** ********** ******* = 3+4 * **********