Question

sendo A=
$\frac{x}{2}$
B=
$- 2x ^{2}$
e C=
$\frac{x}{4}^{2}$
Quanto vale AB-C?

Answer 1

A = x/2
B = - 2x^2
C= x^2/4

= (A.B) - C
= x/2 . (-2x^2) - x^2/4
= - 2x ^3 / 2 - x^2/4
= - x^3 - x^2/4
= (- 4x^3 - x^2)/4