Question

simplifique as expressões algébricas:
a) (-2a^2b).(5ab^2)+8^3b^3
b) -2x.(3x^2)+9x^3
c) (5ab^2)^3+9x^3
d) 10x^6-2x^2.(-3x^2)^2-2x^3.(3x^3)

Answer 1

a) (-2a^2b).(5ab^2)+8^3b^3

=-10a³b³+512b³

b) -2x.(3x^2)+9x^3

=-6x³+9x³=3x³

c) (5ab^2)^3+9x^3

=125a³b⁶+9x³

d) 10x^6-2x^2.(-3x^2)^2-2x^3.(3x^3)

10x⁶-2x² * 9x⁴-6x⁶

=4x⁶-18x⁶=-14x⁶