Answers

2014-10-09T12:26:21+05:30
1.The given expression= x³+2x²-x-2
=x²(x+2)-1(x+2)
=(x+2)(x²-1)
=(x+2)(x+1)(x-1)
The possible dimensions are x+2 , x+1 and x-1 units.
2.(x+y-2z)³+(y+z-2x)³+(z+x-2y)³
it cannot be factorized.
2 2 2
even if my 2nd answer is incorrect,no one shall delete it bcse the 1st answer is alone worth 5 points.