Using Factor Theorem, factorize The Following Polynomials x³-2x²-5x+6
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Answer:
hi
Step-by-step explanation:
x³-2x²-5x+6
x-1=0
x=1
then,
=1-2-5+6
=-1+1
=0
So,
= x³-2x²-5x+6
=x³- x²- x² + x - 6x + 6
=x²(x-1)-x(x-1)-6(x-1)
=(x²-x-6)(x-1)
={x²-(3-2)x-6}(x-1)
=(x²-3x+2x-6)(x-1)
=x(x-3)+2(x-3)(x-1)
=(x+2)(x-3)(x-1)
Hope its help you.............
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