Please solve 6th one....:

6. Solve for  x : x 2 - 1 + x - 1 2 + x 2 - 3 x + 2 = 0

Dear student
x2-1+x-12+x2-3x+2=0x2-1=-x-12-x2-3x+2x2-1=-x2+2x-1-x2-3x+2Now testing each absolute  for its positive and negative ranges.x2-10x21Now, fx2afxa or fx-ax1 or x-1Now, x2-1<0 x2<1Now, fx2<afx<a and fx>-ax<1 and x>-1So, final solution is :-1<x<1Evaluate the expression in the following ranges:x<-1, -1x<1, x1For , x<-1Replacing x2-1 with x2-1x2-1+x-12+x2-3x+2=0x2-1+x2+1-2x+x2-3x+2=02x2-2x+x2-3x+2=0x2-3x+2=-2x2+2xx2-3x+22=-2x2+2x2x2-3x+2=4x4+4x2-8x34x4-8x3+3x2+3x-2=04x4-4x3-x2+2x-4x3+4x2+x-2=0x4x3-4x2-x+2-14x3-4x2-x+2=0x-14x3-4x2-x+2=0x-1=0     4x3-4x2-x+2=0 we cannot find the roots.To find the roots we need Newton Raphson method which is not a  part of your syllabus.
x=1
Regards

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