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Step-3

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 \$u = 1\$ & \$v = 7\$	\$ u^2 + v^2 + 1 \$
2	Now substitute the values \$u = 1\$ & \$v = 7\$ in the expression	\$ (1)^2+(7)^2+1 \$
3	After simplification	\$ 1 + 49 + 1 \$
4	After Addition	\$ 51 \$
5	Answer	A : \$ 51 \$

Steps

Problem

Solution

Determine the value of an expression at
\$u = 1\$ & \$v = 7\$

\$ u^2 + v^2 + 1 \$

Now substitute the values \$u = 1\$ & \$v = 7\$ in the expression

\$ (1)^2+(7)^2+1 \$

After simplification

\$ 1 + 49 + 1 \$

After Addition

\$ 51 \$

Answer

A : \$ 51 \$