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CBSE Class 9 Answered

rootx+y=7 x+rooty=11
Asked by Aditya kumar | 05 Feb, 2014, 07:23: PM
answered-by-expert Expert Answer

Dear Student,

You can use elimination or substitution method both

but here we are using substitution method

Substituting   instead of y in the second equation we get

Subtracting x both sides 

Raising to square both sides we get

Subtracting 11 both sides we get

 

 

The zeroes of this equation are among the divisors of 1444.

The solutions to the system of equations is   and  .

Answered by | 06 Feb, 2014, 10:13: AM

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