Challenger App

★

1M+ Downloads

A2x²-11x-39

B-2x²+11x+39

C-2x²+11x-39

D2x²+11x-39

Answer:

$x^2+5x-12-3(x^2-2x+9)$

$x^2+5x-12-3x^2+6x-27$

$-2x^2+11x-39$

Related Questions:

If $1 + \sqrt{3}$ and $1 - \sqrt{3}$ are the roots of a quadratic equation, then the quadratic equation is:

6(x ^ 3 - 2x ^ 2 + 3x) - (x ^ 3 + 2x - 3)

The roots of the equation $ax^2+ bx + c = 0$ are equal if: