POLYNOMIAL
divide using long division
* (2x² + 5x -4) ÷ (x -2)
* (2x³ - 2x² - x -20) ÷ (x-10)
* (x⁴ - 10x³ + 2) ÷ (x-3)
*(3x³ -x +1 +7x²) ÷ (3x + 1)

show your Solution please..​