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Step-2

Title: Solve the equation

Grade: 7-a Lesson: S4-L2

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Simplify: \$ 2/(x+2) = (x+2)/2 \$
2	Hint	By Cross Multiplication	\$ 2\times2 = (x+2)(x+2) \$
3	Step	After Multiplication	\$ 4 = x^2 + 2x + 2x + 4 \$
4	Step	Add the common terms	\$ 4 = x^2 + 4x + 4 \$
5	Step	Cancelling 4 on both sides	\$ \cancel4 = x^2 + 4x + \cancel4 \$
6	Step	After Cancellation	\$ x^2 + 4x = 0 \$
7		Answer	B

Step

Type

Explanation

Answer

Problem

Simplify:
\$ 2/(x+2) = (x+2)/2 \$

Hint

By Cross Multiplication

\$ 2\times2 = (x+2)(x+2) \$

Step

After Multiplication

\$ 4 = x^2 + 2x + 2x + 4 \$

Step

Add the common terms

\$ 4 = x^2 + 4x + 4 \$

Step

Cancelling 4 on both sides

\$ \cancel4 = x^2 + 4x + \cancel4 \$

Step

After Cancellation

\$ x^2 + 4x = 0 \$

Answer

Tutor: Questions

Seq	Type	Question
1	Problem	What did you learn from this problem?
2	Clue	What did you learn from the clues?
3	Hint	What did you learn from the Hints?
4	Step	What did you learn from the Steps?
5	Step	How can we improve the Steps?

Seq

Type

Question

Audio

Problem

What did you learn from this problem?

Clue

What did you learn from the clues?

Hint

What did you learn from the Hints?

Step

What did you learn from the Steps?

Step

How can we improve the Steps?