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Grade: 10 

                        
For what value of k , x=a is a solution of an equation x^2-(a+b)x+k=0?
4 years ago

Answers : (1)

Vikas TU
12279 Points 
							
If x=a is a solution of an equation x^2-(a+b)x+k=0
then it must satify the eqn. 
Hence at x = a we get,
a^2 – a^2 – ab + k = 0
k = ab
4 years ago
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