Question

URGENTE! (3a³ -2a²b +5ab² –6b³) + (7a² b - 5a³ - b³ +5ab² –6ab²)

Answer 1

$3a^3 -2a^2b +5ab^2 -6b^3 + 7a^2 b - 5a^3 - b^3 +5ab^2-6ab^2=$

$=3a^3-5a^3-2a^2b+7a^2b+5ab^2+5ab^2-6ab^2-6b^3-b^3=$

$=-2a^3+0a^2b+4ab^2-7b^3=$

$=2a^3+4ab^2-7b^3$

Answer 2

Oie, Td Bom?!

$(3a {}^{3} - 2a {}^{2} b + 5ab - 6b {}^{3} ) + (7a {}^{2}b - 5a {}^{3} - b {}^{3} + 5ab {}^{2} - 6ab {}^{2} )$

$3a {}^{3} - 2a {}^{2} b + 5ab - 6b {}^{3} + (7a {}^{2} b - 5a {}^{3} - b {}^{3} - ab {}^{2} )$

$3a {}^{3} - 2a {}^{2} b + 5ab - 6b {}^{3} + 7a {}^{2} b - 5a {}^{3} - b {}^{3} - ab {}^{2}$

$- 2a {}^{3} + 5a {}^{2} b + 5ab - 7b {}^{3} - ab {}^{2}$

Att. Makaveli1996