Question

(a² -4+6)(7a² -5a-2)

Answer 1

Respuesta:

Explicación paso a paso:

(a^2-4+6)(7a^2-5a-2 )

a^2 x (7a^2-5a-2)-4 (7a^2-5a-2)

+6 (7a^2-5a-2)

7a^4-5a^3-2a&2-28a^2+2a+8+

42a^2-30a-12

=7a^4-5a^3+12a^2-10a-4