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NY Regents Algebra II polynomials and rationals quiz quiz

12questions. Pick an answer and you'll see why right away.

  1. By the Remainder Theorem, the remainder when P(x)=x3βˆ’x+4P(x) = x^3 - x + 4 is divided by xβˆ’2x - 2 is

  2. If P(βˆ’3)=0P(-3) = 0, which statement is true?

  3. At the zero x=4x = 4 of f(x)=(xβˆ’4)3(x+1)f(x) = (x - 4)^3(x + 1), the graph

  4. The end behavior of g(x)=3x4βˆ’x2+2g(x) = 3x^4 - x^2 + 2 is

  5. Simplify x2βˆ’25x2+10x+25\frac{x^2 - 25}{x^2 + 10x + 25} (with xβ‰ βˆ’5,5x \neq -5, 5).

  6. When solving a rational equation, why must you check each candidate solution?

  7. The expression x34\sqrt[4]{x^3} written with a rational exponent is

  8. Simplify x2/3β‹…x2/3x^{2/3} \cdot x^{2/3}.

  9. When solving x+6=x\sqrt{x + 6} = x, which candidate is extraneous?

  10. Simplify βˆ’25\sqrt{-25} using i=βˆ’1i = \sqrt{-1}.

  11. The product (2+i)(3βˆ’i)(2 + i)(3 - i) equals

  12. A quadratic has discriminant b2βˆ’4ac=βˆ’20b^2 - 4ac = -20. Its roots are