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Step-5

Title: Determine the value of an expression

Grade: 7-b Lesson: S3-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 at \$p = 6\$ & \$q = -6\$	\$ q^2 - p^2 + 1 \$
2	Now substitute the values \$p = 6\$ & \$q = -6\$ in the expression	\$ (6)^2 - (-6)^2 + 1 \$
3	After simplification	\$ 36 - 36 + 1 \$
4	After simplification	\$ 1 \$
5	Answer	D : \$ 1 \$

Steps

Problem

Solution

Determine the value of an expression at
\$p = 6\$ & \$q = -6\$

\$ q^2 - p^2 + 1 \$

Now substitute the values \$p = 6\$ & \$q = -6\$ in the expression

\$ (6)^2 - (-6)^2 + 1 \$

After simplification

\$ 36 - 36 + 1 \$

After simplification

\$ 1 \$

Answer

D : \$ 1 \$