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Questions and Answers
- Simplify the expression $(-3 + 2i) - (2-i)$.
- Simplify the expression $(-3 + 2i) - (2-i)$.
Answer: $-5 + 3i$
- Simplify the expression $(-3 - i)(-4-3i)$.
- Simplify the expression $(-3 - i)(-4-3i)$.
Answer: $-3 + 19i$
- Simplify the expression $\frac{1 + 2i},{2-3i}$.
- Simplify the expression $\frac{1 + 2i},{2-3i}$.
Answer: $\frac{-4 + 7i},{13}$
- Calculate $i^8$.
- Calculate $i^8$.
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- Find the square root of $-160$.
- Find the square root of $-160$.
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- Write the factored form of $x^2 + 12x + 20$.
- Write the factored form of $x^2 + 12x + 20$.
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- Write the factored form of $25x^2 - 4$.
- Write the factored form of $25x^2 - 4$.
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- Solve the equation $x^2 + 9x = -14$ by factoring.
- Solve the equation $x^2 + 9x = -14$ by factoring.
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- Sketch a parabola with an axis of symmetry $x = -1$ and y-intercept $1$.
- Sketch a parabola with an axis of symmetry $x = -1$ and y-intercept $1$.
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Simplify the expression $(2-i)(-3 - i)(-4-3i)$.
Simplify the expression $(2-i)(-3 - i)(-4-3i)$.
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Calculate $i^8$.
Calculate $i^8$.
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Solve the equation $x^2 + 9x = -14$ by factoring.
Solve the equation $x^2 + 9x = -14$ by factoring.
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