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Step-5

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

Grade: 6-b Lesson: S4-L4

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 values x = -5,y = 3,z = -7	\$ (x + y + z)^2\$
2	Now substitute "x,y,z" values in the expression	\$ (-5 + 3 + (-7))^2 \$
3	After simplification we get	\$ (-5 + 3 - 7)^2 \$
4	After simplification we get	\$ (3 - 12)^2 \$
5	After simplification we get	\$ (-9)^2 \$
6	After simplification we get	\$ 81 \$
7	Answer	C = \$ 81 \$

Steps

Problem

Solution

Determine the value of an expression by substituting the values
x = -5,y = 3,z = -7

\$ (x + y + z)^2\$

Now substitute "x,y,z" values in the expression

\$ (-5 + 3 + (-7))^2 \$

After simplification we get

\$ (-5 + 3 - 7)^2 \$

After simplification we get

\$ (3 - 12)^2 \$

After simplification we get

\$ (-9)^2 \$

After simplification we get

\$ 81 \$

Answer

C = \$ 81 \$