Step-1

Title: Multiplying Radicals

Grade: 8-b Lesson: S1-L7

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

Lesson Steps

Discussion: Step1 Step2 Step3 Step4 Step5

Step Type Explanation Answer

1

Problem

Simplify the following expression:
\$(2\sqrt(3) + \sqrt(12)) \times (\sqrt(3) - \sqrt(6))\$

2

Step

Identify the Expression:

\$(2\sqrt(3) + \sqrt(12)) \times (\sqrt(3) - \sqrt(6))\$

3

Step

Simplify \$\sqrt(12)\$

\$\sqrt(12) = \sqrt(4 \times 3) = 2\sqrt(3)\$

\$ (2\sqrt(3) + 2\sqrt(3)) \times (\sqrt(3) - \sqrt(6))\$

4

Step

Combine Like Terms:

\$(2\sqrt(3)) + (2\sqrt(3)) = 4\sqrt(3)\$

\$4\sqrt(3) \times (\sqrt(3) - \sqrt(6))\$

5

Step

Distribute \$4\sqrt(3)\$

\$4\sqrt(3) \times \sqrt(3) - 4\sqrt(3) \times \sqrt(6)\$

6

Step

Simplify Each Term:

\$4\sqrt(3) \times \sqrt(3) = 4 \times 3 = 12\$

\$4\sqrt(3) \times \sqrt(6) = 4 \times \sqrt(18) = 4 \times 3\sqrt(2) = 12\sqrt(2)\$

7

Step

Combine the Simplified Terms:

\$12 - 12\sqrt(2)\$

8

Step

Therefore, the simplified expression is \$12 - 12\sqrt(2)\$.

9

Choice.A

This option is Incorrect, as it doesn’t match our result, which includes a subtraction term

\$12\sqrt(2)\$

10

Choice.B

This option is Incorrect, as it only represents part of the final result and misses the constant termt

\$- 12\sqrt(2)\$

11

Choice.C

This option is Correct, as it exactly matches the simplified expression

\$12 - 12\sqrt(2)\$

12

Choice.D

This option is Incorrect, as our simplification does not yield any term with \$12\sqrt(3)\$

\$12\sqrt(3)\$

13

Answer

Option

C

14

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5


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