Question

alguém da uma forca ai pf


a) ( x² - 1 ) . ( x² - 12 ) + 24 = 0

b) ( x² + 2 )² = 2. ( x² + 6 )

c) ( x + 2 ) . ( x – 2 ) . ( x + 1 ) . ( x – 1 ) + 5x² = 2=

d) x². ( x² - 9 ) = - 20
                   
 f) x² . ( x² - 10 ) + 9 = ( x + 1 ) . ( x – 1 )    

Answer 1

a)x⁴-12x²-x²+12+24=0
x⁴-13x²+36=0

b)x⁴+4x²+4= 2x²+12
x⁴+2x²-8=0

c)(x²-2x+2x-4).(x²-x+x-1)+5x²=2
(x²-4)(x²-1)+5x²=2
x⁴-x²-4x²+4+5x²=2
x⁴-5x²+5x²+4=2
x⁴+2=0

d)x⁴-9x²=-20
x⁴-9x²+20=0

e)x⁴-10x²+9-x²+1=0
x⁴-11x²+10=0