1.

(x+3)​^4+(x+2)​^4+(x+1)​^4=98

Answer»

3x^4 + 24x^3 + 84x^2 +144x +98=98
98-98=0
3x^4 + 24x^3 + 84x^2 +144x=0
3x(x^3+ 8x^2 +28+48)
3x(x+4) (x^2 +4x+12)=0

x=0    x+4=0   =  x= 0- 4   =  x= -4

i TRIED ANOTHER way :)



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