Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.

A. , x ? -6
B. x - 6, x ? 6
C. x + 6, x ? 6
D. , x ? 6


Answer: C

Mathematics

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Solve the equation using the quadratic formula. Simplify irrational solutions, if possible.x2 + 8x - 5 = 0

A. {-4 ± 2}
B. {4 ± }
C. {-1 ± }
D. {-4 ± }

Mathematics

Determine the discriminant of the quadratic equation. Use the value of the discriminant to determine whether the quadratic equation has two rational solutions, two irrational solutions, one repeated real solution, or two complex solutions that are not real.x2 - 4x + 4 = 0

A. Two irrational solutions B. Two rational solutions C. Two complex solutions that are not real D. One repeated real solution

Mathematics

Find the y-intercept of: y= -4x²+ 8x- 3

What will be an ideal response?

Mathematics

Build a variable expression for the given phrase.Two times the difference of two numbers.

A. 2(x - y) B. 2x - y C. 2(x ÷ y) D. x - 2y

Mathematics