Question

08. Efetue as multiplicações.
a) (3x2 - 5x + 8). (2x)
b) (3x + 1).(x+2)
c) ( 4x2 - 2x ). ( 5x)
d) ( 3y-6). (y)

Answer 1

Resposta:

a) (3x2 - 5x + 8). (2x)

${6x}^{3} - {10x}^{2} + 16x$

b) (3x + 1).(x+2)

${3x}^{2} + 6x + x + 2 \\ {3x}^{2} + 7x + 2$

c) ( 4x2 - 2x ). ( 5x)

${20x}^{3} - {10x}^{2}$

d) ( 3y-6). (y)

${3y}^{2} - 6y$