W(x)=16x⁴-16x³+4x² =4x²(4x²-4x+1)=0
b)
W(x)=4x⁴-(x+1)²=4x⁴ -(x²+2x+1)=4x⁴-x² -2x-1
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W(x)=16x⁴-16x³+4x² =4x²(4x²-4x+1)=0
b)
W(x)=4x⁴-(x+1)²=4x⁴ -(x²+2x+1)=4x⁴-x² -2x-1