Step-1

Title: Evaluate the expression

Grade: 7-a Lesson: S2-L7

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

Lesson Steps

Step Type Explanation Answer

1

Problem

Evaluate the expression when y = 9:
\$ \sqrt(y) - 6y + 7 \$

2

Step

Substitute y value in the expression

\$ \sqrt(9) - (6\times9) 7 \$

3

Step

9 is a perfect square of 3

\$ \sqrt(3^2) - 54 + 7 \$

4

Step

After cancellation of square and square root

\$ 3 - 54 + 7\$

5

Step

After simplification

10 - 54

6

Step

After simplification

-44

7

Answer

B

Tutor: Questions

Seq Type Question Audio

1

Problem

What did you learn from this problem?

2

Clue

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3

Hint

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4

Step

What did you learn from the Steps?

5

Step

How can we improve the Steps?


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