Divide: 4x2−12x÷2x−16x2\dfrac{4x^2 - 1}{2x} \div \dfrac{2x - 1}{6x^2}2x4x2−1÷6x22x−1 (assume x≠0,12x \neq 0, \frac{1}{2}x=0,21).
3x(2x+1)3x(2x + 1)3x(2x+1)
3(2x+1)x\dfrac{3(2x+1)}{x}x3(2x+1)
3x3x3x
3(2x−1)3(2x - 1)3(2x−1)