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Step-3

Title: Simplify the expression

Grade: 7-a Lesson: S3-L8

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Given that: \$ (9x^3 + 3x^2) - (-4x^2 + 4x^3) \$
2	Hint	Simplify the expression	\$ 9x^3 + 3x^2 + 4x^2 - 4x^3 \$
3	Step	Like terms add together	\$ (9x^3 - 4x^3) + (3x^2 + 4x^2) \$
4	Step	After simplification	\$5x^3 + 7x^2 \$
5	Step	Taking common as \$'x^2'\$	\$ x^2(5x + 7) \$
6		Answer	A

Step

Type

Explanation

Answer

Problem

Given that:
\$ (9x^3 + 3x^2) - (-4x^2 + 4x^3) \$

Hint

Simplify the expression

\$ 9x^3 + 3x^2 + 4x^2 - 4x^3 \$

Step

Like terms add together

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

Step

After simplification

\$5x^3 + 7x^2 \$

Step

Taking common as \$'x^2'\$

\$ x^2(5x + 7) \$

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?