Quadratic Concept ...
Algebra
Level
2
Find The Roots Of The Equation . That Is Find The Values Of X .
2 and -4
2 and 4
2 and 1
2 and -1
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1 solution
x = root(2+x) => x^2 = 2+x => x^2 - x - 2 = 0 => (x-2)(x+1) = 0 => x = 2 or -1 But i want to add something here that x can not be -1 since square root of any real number is positive. So value of x should be only 2. Please correct your answer.