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Section 5-4 : Finding Zeroes of Polynomials

Find all the zeroes of the following polynomials.

  1. \(h\left( x \right) = {x^3} - 2{x^2} - 11x + 12\)
  2. \(f\left( x \right) = {x^3} + 10{x^2} + 29x + 20\)
  3. \(h\left( x \right) = 2{x^3} - 15{x^2} + 34x - 24\)
  4. \(g\left( x \right) = {x^4} - 6{x^3} + 22x + 15\)
  5. \(f\left( x \right) = {x^4} - 3{x^3} - 7{x^2} + 15x + 18\)
  6. \(Q\left( x \right) = 4{x^4} + {x^3} - 35{x^2} - 24x + 36\)
  7. \(h\left( x \right) = 9{x^4} + 15{x^3} - 11{x^2} - 11x - 2\)
  8. \(A\left( x \right) = 2{x^5} + 19{x^4} + 68{x^3} + 114{x^2} + 90x + 27\)
  9. \(P\left( x \right) = 16{x^5} - 48{x^4} + 24{x^3} + 40{x^2} - 39x + 9\)