Rozłóż wielomian na czynniki
a) 2x⁴-8x³+6x²
b)2x²-32
c)x⁵x
d)4x⁵-20x⁴-24x³
e)x⁴+x³-4x²-4x
f)x³-2x²-2x+4
bardzo proszę o rozwiązanie.Dziękuje :)
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a)
2x⁴-8x³+6x²=
2x⁴-2x³-6x³+6x²=
2x³(x-1)-6x²(x-1)=
(2x³-6x²)(x-1)=
2x²(x-6)(x-1)
b)
2x²-32=
2(x²-16)=
2(x-4)(x+4)
c)
x⁵x=
x⁶
d)
4x⁵-20x⁴-24x³=
4x⁵+4x⁴-24x⁴-24x³=
4x⁴(x+1)-24x³(x+1)=
(4x⁴-24x³)(x+1)=
4x³(x-6)(x+1)
e)
x⁴+x³-4x²-4x=
x³(x+1)-4x(x+1)=
(x³-4x)(x+1)=
x(x²-4)(x+1)=
x(x-2)(x+2)(x+1)
f)
x³-2x²-2x+4=
x²(x-2)-2(x-2)=
(x²-2)(x-2)