rozłóz na czynniki wyrazenia algebraiczne:bardzo prosze o pomoc. A)x³+8 B)-2x⁴+4x² C)x³-x²+x-1 D)9x²-25y² z gory dziekuje

A) x³+8= x³+2³= (x+2)(x²-2x+4)   B) -2x⁴+4x²= -2x²(x²-2)   C) x³-x²+x-1= x²(x-1)+x-1= x²(x-1)+1(x-1)= (x²+1)(x-1)   D) 9x²-25y²= (3x)²-(5y)²= (3x-5y)(3x+5y)  

A)x³+8=(x+2)(x²-2x+4)     B)-2x⁴+4x²=2x²(-x²+2)     C)x³-x²+x-1=x²(x-1)+1(x-1)=(x²+1)(x-1)   D)9x²-25y²=(3x-5y)(3x+5y)  

A)x³+8 = (x+2)(x²-2x+4) B)-2x⁴+4x² = -2x²(x²-2)=-2x²(x+√2)(x-√2) C)x³-x²+x-1 = x²(x-1)+(x-1)=(x²+1)(x-1) D)9x²-25y² = (3x-5y)(3x+5y)