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Step-2

Title: Determine the value of an expression by substituting the values

Grade: 6-b Lesson: S4-L6

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Steps	Problem	Solution
1	Determine the value of an expression by substituting the value x = 2	\$4/x^2 - 1/x \$
2	Now substitute "x" value in the expression	\$ 4/2^2 - 1/2 \$
3	After simplification we get	\$ \cancel4^1/\cancel4^1 - 1/2 \$
4	After cancellation we get	\$ 1 - 1/2 \$
5	Taking LCM as 2	\$ (2 - 1)/2 \$
6	After simplification we get	\$ 1/2 \$
7	Answer	D = \$ 1/2 \$

Steps

Problem

Solution

Determine the value of an expression by substituting the value
x = 2

\$4/x^2 - 1/x \$

Now substitute "x" value in the expression

\$ 4/2^2 - 1/2 \$

After simplification we get

\$ \cancel4^1/\cancel4^1 - 1/2 \$

After cancellation we get

\$ 1 - 1/2 \$

Taking LCM as 2

\$ (2 - 1)/2 \$

After simplification we get

\$ 1/2 \$

Answer

D = \$ 1/2 \$