1. Stating the problem: Solve the equation $$|x|4x + 3 = -5$$.
2. First, isolate the absolute value term and constants: $$|x|4x = -5 - 3$$ which simplifies to $$|x|4x = -8$$.
3. Note that $$|x|$$ is always non-negative (i.e., $$|x| \geq 0$$), and $$4x$$ depends on the sign of $$x$$.
4. Consider the expression $$|x|4x$$. Since $$|x| = \begin{cases} x & x \geq 0 \\ -x & x < 0 \end{cases}$$, then:
- If $$x \geq 0$$, $$|x|4x = x \cdot 4x = 4x^2$$.
- If $$x < 0$$, $$|x|4x = (-x) \cdot 4x = -4x^2$$.
5. Solve for each case:
Case 1: $$x \geq 0$$
$$4x^2 = -8$$
Divide both sides by 4:
$$x^2 = -2$$
Since $$x^2$$ cannot be negative for real numbers, no real solution here.
Case 2: $$x < 0$$
$$-4x^2 = -8$$
Multiply both sides by -1:
$$4x^2 = 8$$
Divide both sides by 4:
$$x^2 = 2$$
Take square root:
$$x = \pm \sqrt{2}$$
But since $$x < 0$$, only $$x = -\sqrt{2}$$ is valid.
6. Final answer: $$x = -\sqrt{2}$$.
This is the only real solution to the equation.
Absolute Value Equation 6B9024
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