Question

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Answer 1

Respuesta:

a) x² + 6x + 9 = 0

para x y x = - 3 ⇒ (-3)² + 6 × (-3) + 9 = 9 - 18 + 9 = 0

b) x² - 5x + 4 = 0

para x = 4 ⇒ 4² - 5 × 4 + 4 = 16 - 20 + 4 = 0

para x = 1 ⇒ 1² - 5 × 1 + 4 = 1 - 5 + 4 = 0

c) x² - 6x + 8 = 0

para x = 2 ⇒ 2² - 6 × 2 + 8 = 4 - 12 + 8 + 0

para x = 4 ⇒ 4² - 6 × 4 + 8 = 16 - 24 + 8 = 0

d)  -8x + x² + 15 = 0 ⇔ x² - 8x + 15 = 0

para x = 5 ⇒ 5² - 8 × 5 + 15 = 25 - 40 + 15 = 0

para x = 3 ⇒ 3² - 8 × 3 + 15 = 9 - 24 + 15 = 0

e) - 10x + 24 + x² = 0 ⇔ x² -10x + 24 = 0

para x = 4 ⇒ 4² - 10 × 4 + 24 = 16 - 40 + 24 = 0

para x = 6 ⇒ 6² - 6 × 10 + 24 = 36 - 60 + 24 = 0

>:v re Facil

Explicación paso a paso:

Answer 2

Respuesta:

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Explicación paso a paso: