Questions and Answers
The imaginary number line is _____, and the real number line is _____.
If we square the imaginary number i, the result is _____.
(√42 + 9 + 3) / 2 equals to?
Evaluate the expression 4(-5 + 3)² - (-3)².
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What is √−54?
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Solve for −√−9.
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What is the result of (-3 + 2i) + (8 - 4i)?
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What is √8i ⋅ √3i?
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What is the value of 15i^7?
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Evaluate (4 + 4i)(3 + i).
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What is 10i / √3i?
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(3i^3)² equals what?
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What type of solution does 5x² - 4x + 2 = 0 have?
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What type of solutions does 3x² - 6x + 3 = 0 have?
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What is the representation of the quantity √6 units to the north?
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Solve for (-2x^8) - 4.
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Evaluate y^2 + 2y - 8 / 5y^2 + 20y.
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What are the solutions for x² = -31?
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What are the solutions for (x - 4)² = -16?
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What are the solutions for x² + 5x + 7 = 0?
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What are the solutions for 18x² = 3x?
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Solve for 7 + √4x / 5 = 2.
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What is the solution for √8 − x² = 2?
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What is the solution for √x + 3 = √x + 1?
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Ann and Sarah are icing cupcakes. Ann can ice a cupcake in 30 seconds. Sarah can ice a cupcake in 40 seconds. How many seconds will it take them, working together, to ice all 35 cupcakes?
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Study Notes
Imaginary and Real Numbers
- Imaginary number line is vertical; real number line is horizontal.
- Squaring the imaginary unit i results in -1.
Mathematical Expressions and Operations
- Expression (√42 + 9 + 3) / 2 is evaluated as "None of the above" options.
- The calculation of 4(-5 + 3)^2 - (-3)^2 equals 7.
- The square root of -54 is expressed as 9√6i.
Complex Numbers and Operations
- The negative square root of -9 simplifies to -3i.
- Adding complex numbers: (-3 + 2i) + (8 - 4i) results in 5 - 2i.
- The product of √8i and √3i equals 2√6.
Algebraic Manipulations
- 15i 7 evaluates to -15.
- The product (4 + 4i)(3 + i) simplifies to 12 + 4i.
- Dividing 10i by √3i results in 10√3/3.
Power and Roots of Complex Numbers
- (3i^3)^2 simplifies to 9i.
- The equation 5x² - 4x + 2 = 0 has complex roots.
- The equation 3x² - 6x + 3 = 0 has real roots.
Geometric Interpretations
- The quantity √6 units to the north is represented as 0 + √6i.
Function and Equation Solutions
- The expression (-2x^8) - 4 simplifies to 1/16x^32.
- Simplifying the fraction (y² + 2y - 8) / (5y² + 20y) yields y - 2 / 5y.
- The equation x² = -31 produces complex solutions: +√31i, -√31i.
Quadratic Equations
- The equation (x - 4)² = -16 results in solutions: 4 + 4i, 4 - 4i.
- Solutions to x² + 5x + 7 = 0 are -5 + √3i/2 and -5 - √3i/2.
Solving Linear Equations
- The equation 18x² = 3x results in solutions: 0, 1/6.
- The equation 7 + √4x / 5 = 2 simplifies to 9/4.
- The solution set for √x + 3 = √x + 1 is "No solution."
Real World Application
- Ann and Sarah together ice 35 cupcakes, taking 1000 seconds combined when Ann can ice a cupcake in 30 seconds, and Sarah in 40 seconds.
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Description
Prepare for your Algebra 2 exam with these flashcards focusing on key concepts from the Second Quarter Test 7. Each card includes important definitions and terminology essential for mastering the material. Test your knowledge and get ready to shine in your Algebra 2 class!
