Question

check whether the following are quadratic equations x3-4x2-x+1=(x-2)3​

Answer 1

$\underline{\underline{ \huge \red{ \mathfrak{AnSwer}}}}$

x³ - 4x²- x + 1 = (x - 2)³

➪ x³ - 4x² - x + 1 = x³ - 8 - 6x² + 12x

➪ x³ - 4x² - x + 1 - x³ + 8 + 6x² - 12x = 0

➪ - 4x² + 6x² - x - 12x + 1 + 8 = 0

➪ 2x² - 13x + 9 = 0

the equation is in the form of ax² + bx + c = 0

so, it's a quadratic equation