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a two digit number is such that the product of the digits is 12 and 36 is added to the number the digit interchange their place formulate the quadratic equation whose roots is a digit of the number.

Posted by Rupesh Kumar Mahato 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Arshika ✨ 5 years, 2 months ago

Let the no.be m and n ATQ: m*n=12_____(1) 10m+n=10n+m+36 9m-9n=36 m-n=4_____(2) m=4+n [By putting value of m in first eq] (4+n)n=12 n^2+4n-12=0 n=2,-6 m=6,-2

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