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(x - 1)² = x² - 2x +1
Sustituimos en la ecuación origiral
(9x² - 24x + 16) + ( x² - 2x + 1) = 17
9x² - 24x + 16 + x² - 2x + 1 = 17
10x² - 26x + 17 = 17
10x² - 26x + 17 - 17 = 0
10x² - 26x = 0
Utilizamos la ecuación -b+-
a = 10
b = -26
c = 0
-(-26)+-
26+-√
= 2.6
= 0
x₁ = 2.6
x₂ = 0
x es igual a 2.6