if X square + 10 X + Lambda is a perfect square then find the possible value of Lambda
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You say that X² + 10X + L is a perfect square, then it should be in the form of a²+ b²+ 2ab,
Which is given to be X²+ 10X + L
= X² + 2(5)(X)+ L
In this expression, you can clearly see that the expression 2(5)(X) has 2 as the constant, X as the square root of the first term, and the last option here to put is 5, which should be the square root of the second term.
So, √lambada² = 5, then
Lambada = 5.
NOW, THAT'S THE CORRECT ANSWER.
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