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Step-4

Title: Substitute the varible value in square form of the expression

Grade: 8-a Lesson: S2-L2

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Determine the value of an expression when e = \$-7/3\$, f = 4, g = \$9/2\$ \$ e^2 - f^2 - g^2 \$
2	Step	Now substitute e,f,g values in expression	\$ (-7/3)^2 - 4^2 - (9/2)^2 \$
3	Step	After simplification we get	\$ 49/9 - 16 -81/4\$
4	Hint	Taking LCM as 36
5	Step	After simplification	\$ (196 - 576 - 729)/36 \$
6	Step	After adding we get	\$ -1109/36\$
7		Answer	C

Step

Type

Explanation

Answer

Problem

Determine the value of an expression when e = \$-7/3\$, f = 4, g = \$9/2\$
\$ e^2 - f^2 - g^2 \$

Step

Now substitute e,f,g values in expression

\$ (-7/3)^2 - 4^2 - (9/2)^2 \$

Step

After simplification we get

\$ 49/9 - 16 -81/4\$

Hint

Taking LCM as 36

Step

After simplification

\$ (196 - 576 - 729)/36 \$

Step

After adding we get

\$ -1109/36\$

Answer