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12(x^4-1)+7x(x²+1)=
12(x²+1)(x²-1)+7x(x²+1)=
(x²+1)(12(x²-1)+7x)=
(x²+1)(12x²-12+7x)=
(x²+1)(12x²+7x-12)= LLAMEMOS * A ESTA ECUACION
12x²+7x-12 esta ecuacion se resuelve con la formula cuadratica
_________
–b ± √ b² – 4ac
x = ______________
2a
_________
–7 ± √ 7² – 4(12)(-12)
x = _________________
2(12)
_________
–7 ± √ 49 + 576
x = _________________
24
_________
–7 ± √ 625
x = _________________ =
24
–7 ± 25
x = ______
24
salen dos valores x=18/24=3/4 y x=-32/24=-4/3
12x²+7x-12=(3x+4)(4x-3)
reemplazando EN *
(x²+1)(12x²+7x-12)= (x²+1)(3x+4)(4x-3)=(3x+4)(4x-3)(x²+1)