Question

(x+1)^2=100 por distributiva

Answer 1

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Ola Miih

(x + 1)² = 100

x² + 2x + 1 = 100

x² + 2x - 99 = 0

delta
d² = 4 + 396 = 400
d = 20

x1 = (-2 + 20)/2 = 9
x2 = (-2 - 20)/2 = -11

pronto