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How do I solve sqrt(5x + 3) = -2?
- Thread starter littapple
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eddybob123
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- Aug 18, 2013
- 76
Re: What is sqrt(5x+3)=-2? Help me solve?
$$5x+3=4$$
And following that gives
$$5x=1$$
$$x=\frac{1}{5}$$
However, when putting in the value of x into your original equation, we want to take only the positive root, so your equation has no solutions.
If you square both sides you getWhat's the answer to the problem sqrt(5x+3)=-2, solving for x?
If you square both sides, you get 2=-2, which is wrong. Does it have to
do with complex/imaginary numbers? Or does it have no answer at all?
$$5x+3=4$$
And following that gives
$$5x=1$$
$$x=\frac{1}{5}$$
However, when putting in the value of x into your original equation, we want to take only the positive root, so your equation has no solutions.
- Jan 29, 2012
- 1,174
Re: What is sqrt(5x+3)=-2? Help me solve?
When working with real numbers, [tex]\sqrt{a}[/tex] is, by definition, the positive number whose square is a. You should have been able to see, immediately, that [tex]\sqrt{5x+3}= -2[/tex] has NO solution.
When working with real numbers, [tex]\sqrt{a}[/tex] is, by definition, the positive number whose square is a. You should have been able to see, immediately, that [tex]\sqrt{5x+3}= -2[/tex] has NO solution.