Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Expand the expression by using algebric identities |
Grade: 9-a Lesson: S3-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Expand the expression: |
|
2 |
Hint |
By using algebraic |
\$ (a+b)^3 = a^3+b^3+3ab(a+b)\$ |
3 |
Step |
After using algebraic |
\$ (4x)^3 + (1/(4x))^3 + 3 (\cancel(4x))^1(1/\cancel(4x)^1)(4x + 1/(4x)) \$ |
4 |
Step |
After cancellation |
\$ 64x^3 + 1/(64x^3) + 3 (4x + 1/(4x)) \$ |
5 |
Step |
After simplification |
\$ 64x^3 + 1/(64x^3) + 12x + 3/(4x) \$ |
6 |
Answer |
C |
|
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