Please provide a step by step solution
Thanks in advance!
Thanks in advance!
-
x^4 - 1.4x^3 - 33.71x^2 + 23.94x + 292.41=0
100x^4 - 140x^3 - 3371x^2 + 2394x + 29241 = 0
100x^4 + 49x^2 + 29241 - 140x^3 + 2394x - 3420x^2 = 0
100x^4 + 49x^2 + 29241 - 2(70x^3 - 1197x + 1710x^2) = 0 => in the form of:
a^2 + b^2 + c^2 + 2(ab + bc + ca) , where: a = 10x^2 , b = 7x , c = 171
using: (a + b + c)^2 = a^2 + b^2 + c^2 + 2(ab + bc + ca)
= (10x^2 - 7x - 171)^2
100x^4 - 140x^3 - 3371x^2 + 2394x + 29241 = 0
100x^4 + 49x^2 + 29241 - 140x^3 + 2394x - 3420x^2 = 0
100x^4 + 49x^2 + 29241 - 2(70x^3 - 1197x + 1710x^2) = 0 => in the form of:
a^2 + b^2 + c^2 + 2(ab + bc + ca) , where: a = 10x^2 , b = 7x , c = 171
using: (a + b + c)^2 = a^2 + b^2 + c^2 + 2(ab + bc + ca)
= (10x^2 - 7x - 171)^2
-
you are welcome, and thanks for the BA.
Report Abuse
-
I don't know how to go about doing this problem step by step, but this is the answer wolfram-alpha provided:
(x^2-9x+20.25)(x^2+7.6x+14.44)=0
(x^2-9x+20.25)(x^2+7.6x+14.44)=0