Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Determine the value of an expression |
Grade: 8-a Lesson: S2-L4 |
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 \$(n times l)(l times i)(i times n)\$ when n = 2, l = 3 and i = 1.
Step 1a
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The given expression is, \$(n times l)(l times i)(i times n)\$. |
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Explanation:
The given expression is, \$(n times l)(l times i)(i times n)\$. The expression contains variable in 'n', 'l' and 'i' and n = 2, l = 3 and i = 1. |
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Step 1b
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Substitute the values of the variables in the expression. |
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Explanation:
Substitute the values of the variables and perform operations. ⇒ \$(n times 3)(l times i)(i times n)\$ ⇒ \$(2 times 3)(3 times 1)(1 times 2)\$ Perform operations according to PEMDAS rule. ⇒ \$(6)(3)(2)\$ ⇒ \$18(2)\$ ⇒ \$36\$ |
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