Question

(a + b) (4a − 3b) – (5a − 2b) (3a + b)
– ( a + b ) ( 3a − 6b )​

Answer 1

Respuesta:

-14a^2 + 5b^2 + 5ab

Explicación paso a paso:

(a + b) (4a − 3b) – (5a − 2b) (3a + b) – ( a + b ) ( 3a − 6b )​

(4a^2 - 3ab + 4ab - 3b^2) - (15a^2+5ab-6ab-2b^2) - (3a^2-6ab+3ab-6b^2)

(4a^2- 15a^2 - 3a^2) + (- 3b^2+2b^2+6b^2) + (- 3ab + 4ab-5ab+6ab+6ab-3ab)

-14a^2 + 5b^2 + 5ab