Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Dividing Radicals |
Grade: 8-b Lesson: S1-L8 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
Simplify the following expression: \$ (3u\sqrt(36v^2)) / (12\sqrt(100uv)) \$.
Step 1a
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Simplify inside the square roots: \$ \sqrt (36v^2) = 6v \$(since \$ \sqrt(36) = 6 \$) \$ \sqrt(100uv) = 10\sqrt(uv) \$ So the expression becomes: \$ 3u 6v \div 12(10\sqrt(uv)) \$ |
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Explanation: We simplified the expressions inside the square roots and then substituted these simplified forms into the given expression. |
Step 1b
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Simplify the constants: \$ 3 \times 6 = 18 \$ \$ 12 \times 10 = 120 \$ Substitute these values: \$ 18uv \div 120(\sqrt(100uv)) \$ |
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Explanation: We simplified the numbers and then used these simplified values in the expression. |
Step 1c
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Simplify the fraction (reduce the fraction): Simplify \$ 18uv \div 120(\sqrt(100uv)) \$ Divide both numerator and denominator by 6: \$ 3uv \div 20\sqrt(uv) \$ Therefore, the simplified expression is \$ 3uv \div 20\sqrt(uv) \$. |
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Explanation: After reducing the fraction, we determine the final result. |
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