Question

(4x - 10y + 6) - (7x – 2y +2)

Answer 1

Distribuir el signo negativo:

=4x−10y+6+−1(7x−2y+2)

=4x+−10y+6+−1(7x)+−1(−2y)+(−1)(2)

=4x+−10y+6+−7x+2y+−2

Combinar términos comunes:

=4x+−10y+6+−7x+2y+−2

=(4x+−7x)+(−10y+2y)+(6+−2)

=−3x+−8y+4

solución:

=−3x−8y+4