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Algebra: surds, indices and polynomials quiz: N(A)-Level Additional Mathematics (SEAB 4051) quiz

15questions. Pick an answer and you'll see why right away.

  1. Using the laws of indices, simplify a4Γ—a3a^4 \times a^3.

  2. What is the value of 505^0?

  3. Write aβˆ’3a^{-3} as a positive-index expression.

  4. Evaluate 163/416^{3/4}.

  5. Solve 3x=813^{x} = 81.

  6. Simplify 72\sqrt{72} to the form k2k\sqrt{2}.

  7. Simplify 48+27\sqrt{48} + \sqrt{27}.

  8. Rationalise 42\dfrac{4}{\sqrt{2}}.

  9. What is the conjugate of 5βˆ’35 - \sqrt{3}, used to rationalise a denominator?

  10. By the remainder theorem, the remainder when f(x)f(x) is divided by (xβˆ’a)(x - a) is:

  11. Find the remainder when f(x)=x3βˆ’2x2+4xβˆ’1f(x) = x^3 - 2x^2 + 4x - 1 is divided by (xβˆ’2)(x - 2).

  12. The factor theorem says (xβˆ’a)(x - a) is a factor of f(x)f(x) when:

  13. Show (xβˆ’1)(x - 1) is a factor of f(x)=x3+2x2βˆ’5x+2f(x) = x^3 + 2x^2 - 5x + 2 by evaluating:

  14. Simplify (x2)3(x^2)^3.

  15. Simplify 655\dfrac{6\sqrt{5}}{\sqrt{5}}.