(x+3)^4+(x+2)^4+(x+1)^4=98
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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 :)
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 :)
roccco:
you didn't mentioned 28x x is missing
by the way thanks
how did you got x+4
thanks you
btw what year are you in
11th
x+4 kaise aya
i am year 10
sorry if i didnt help you much
no prblm
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