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Step-2

Title: Evaluate the expression

Grade: 7-b Lesson: S3-L7

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

Lesson Steps

Steps	Problem	Solution
1	Evaluate the expression when \$x = 3\$	\$ 4x^2 + 9 \$
2	Substitute '\$x = 3\$' in expression	\$ 4(3^2) + 9 \$
3	After Simipification	\$ (4×9)+9\$
4	After Multiplication	\$ 36 + 9 \$
5	After Addition	\$45 \$
6	Answer	B = \$ 45 \$

Steps

Problem

Solution

Evaluate the expression when \$x = 3\$

\$ 4x^2 + 9 \$

Substitute '\$x = 3\$' in expression

\$ 4(3^2) + 9 \$

After Simipification

\$ (4×9)+9\$

After Multiplication

\$ 36 + 9 \$

After Addition

\$45 \$

Answer

B = \$ 45 \$