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41. Find the value of the polynomial 5x - 4x² + 3 at
x = 2.

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42. Find p(0), p(1) and p(2) for each of the following polynomials:
p(y) = y² - y + 1

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43. Find p(0), p(1) and p(2) for each of the following polynomials:
p(t) = 2 + t + 2t² - t³

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44. Find p(0), p(1) and p(2) for each of the following polynomials:
p(x) = x³

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p(x) = (x - 1)(x + 1)
∴ p(0) = (0 - 1)(0 + 1) = (- 1)(1) = - 1,
p(1) = (1 - 1)(1 + 1) = (0)(2) = 0,
and, p(2) = (2 - 1)(2 + 1) = (1)(3) = 3

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46. Verify whether the following are zeroes of the polynomial, indicated against them.

p(x) = 3x + 1, x =

negative 1 third

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47. Verify whether the following are zeroes of the polynomial, indicated against them.
p(x) = 5x -

straight pi

, x =

4 over 5

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48. Verify whether the following are zeroes of the polynomial, indicated against them.
p(x) = x² - 1, x = 1, - 1

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49. Verify whether the following are zeroes of the polynomial, indicated against them.
p(x) = (x + 1)(x - 2), x = - 1, 2

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50. Verify whether the following are zeroes of the polynomial, indicated against them.
p(x) = x², x = 0

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