[(sqrt(3x+12))/x ] - (1/x+3) I tried this question and got [-4,-3) U (0,infinity) it's not right though... what am i doing wrong?
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Originally Posted by vecoma [(sqrt(3x+12))/x ] - (1/x+3) I tried this question and got [-4,-3) U (0,infinity) it's not right though... what am i doing wrong? Since you do not show any working for how you got your answer, it is impossible to know what you're doing wrong. You require $\displaystyle 3x + 12 \geq 0$, excluding values of x for which x = 0 and x + 3 = 0 ....
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