Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Determine the value of algebraic expression |
Grade: 7-a Lesson: S2-L8 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
1. Determine the value of expression \$sqrt(i^2 + 150)\$ when i = 10.
Step 1a
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Given expression. |
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Explanation:
Given expression \$sqrt(i^2 + 150)\$ is an algebraic expression in variable i and value of i = 10. |
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Step 1b
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Substitute the value of variable |
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Explanation: Substitute the value of variable i = 10 in the expression. \$sqrt(i^2 + 150)\$ \$=> sqrt((10)^2 + 150)\$ |
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Step 1c
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Perform the opreartions among the terms to determine the value of expression. |
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Explanation:
Perform operations among the terms \$=> sqrt((100 + 150)\$ \$=> sqrt(250)\$ \$=> sqrt(25 times 10) \$ \$=> sqrt(25) times sqrt(10) \$ \$=> 5 times sqrt(10) \$ \$=> 5sqrt(10) \$ |
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