Chapter 11: Problem 28
Simplify the expression. $$\frac{x}{3 x^{2}+2 x-8} \cdot(3 x-4)$$
Chapter 11: Problem 28
Simplify the expression. $$\frac{x}{3 x^{2}+2 x-8} \cdot(3 x-4)$$
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Get started for freeSimplify the expression. $$\frac{3}{x+3}+\frac{4 x}{2 x+6}$$
Simplify the expression. $$\frac{4 x}{5 x-2}-\frac{2 x}{5 x+1}$$
Sketch the graph of the function. $$y=x^{2}$$
Simplify. \(\frac{2 m}{3} \cdot 6 m^{2}\)
When you add rational expressions, you may need to factor a trinomial to find the LCD. Study the sample below. Then simplify the expressions in Exercises 46–49. $$\text { Sample: } \frac{2 x}{x^{2}-1}+\frac{3}{x^{2}+x-2}=\frac{2 x}{(x+1)(x-1)}+\frac{3}{(x-1)(x+2)}$$ The LCD is \((x+1)(x-1)(x+2)\) Note: If you just used \(\left(x^{2}-1\right)\left(x^{2}+x-2\right)\) as the common denominator, the factor \((x-1)\) would be included twice. $$\frac{7 x+2}{16-x^{2}}+\frac{7}{x-4}$$
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