Explanation:
(((x3) - 2x2) - 4x) - 2 = 0
STEP
2
:
Checking for a perfect cube
2.1 x3-2x2-4x-2 is not a perfect cube
Trying to factor by pulling out :
2.2 Factoring: x3-2x2-4x-2
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -4x-2
Group 2: -2x2+x3
Pull out from each group separately :
Group 1: (2x+1) • (-2)
Group 2: (x-2) • (x2)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
2.3 Find roots (zeroes) of : F(x) = x3-2x2-4x-2
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers