leslieemoralesss leslieemoralesss

11-03-2021
Mathematics

contestada

We want to find the zeros of this polynomial:
p(x) = (2x^2 – 9x + 7)(x - 2)

Respuesta :

Witcher3 Witcher3

14-03-2021

p(x) = (2x² - 9x + 7)(x - 2)

2x² - 9x + 7 = 0 or x - 2 = 0

x = 2

a = 2, b = -9, c = 7

Delta = (-9)² - 4 * 2 * 7 = 81 - 56 = 25

x = (-(-9) - 5)/(2 * 2) = 4/4 = 1

x = (-(-9) + 5)/(2 * 2) = 14/4 = 3,75

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