Simplify: 3x(x - 6) + x² + 6x - 9 + 24

Challenger App

★

1M+ Downloads

Simplify: 3x(x - 6) + x² + 6x - 9 + 24 - x³

A15-12x + 4x² + x³

B15+12x + 4x² - x³

C15-12x + 4x² - x³

D15+12x + 4x² + x³

Answer:

$3x^2-18x+x^2+6x-9+24-x^3$

$15-12x+4x^2-x^3$

Related Questions:

If a and b are the roots of $x^2 + x - 2 = 0$ , then the quadratic equation in x whose roots are $\frac1a + \frac1b$ and ab is:

5x^2-11x+6= 0