Question

ayúdenme :( por favor

Answer 1

f(x) = ¼x² – 36

= (1/2x + 6) (1/2x - 36) = 0

entonces:

x1= 1/2x + 6 = 0

x1 = 1/2x = -6

x1= x = (-6)÷(1/2)

= x1= -12.

x2= 1/2x - 36 = 0

x2= 1/2x = 36

x2= x = (36) ÷ (1/2)

x2= 72.

f(x) = 8x⁶ - 14x³ - 15

f(x) = x⁶ -7/4x² - 15/8

centro = 7/8

u= u – 7/8 ; u + 7/8

(u – 7/8) (u + 7/8) = 15/8

u² – (7/8)² = 15/8

u² – 49/64 = 15/8

u² = (15/8) + 49/64

u² = 169/64

u = 13/8

* X1= u – 7/8

X1 = 17/8 – 7/8

x1 = 10/8

* X2 = u + 7/8

X2 = 13/8 + 7/8

X2 = 5/2

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