Question

Restar la suma de - 2xy+x²-3y² de la suma de 8x²-3y²-5xy-1 con - 9+6x²-y²​

Answer 1

Respuesta:

Suma = S

S = $\frac{-b}{a}$

suma de - 2xy+x²-3y²

a = -2

b = 1

c = -3

S = $\frac{-1}{-2} = \frac{1}{2}$

suma de 8x²-3y²-5xy-1

a = 8

b = -3

c = -5-1 = -6

S = $\frac{-(-3)}{8} = \frac{3}{8}$

suma de-9+6x²-y²

a = -9

b = 6

c = -1

S = $\frac{-6}{-9} = \frac{2}{3}$

RESTAMOS:

$\frac{1}{2}-\frac{3}{8}-\frac{2}{3}=-\frac{13}{24}\quad \left(\mathrm{Decimal:\quad }\:-0.54166\dots \right)$

mUCHA sUERTE cHICA ! :"3 .