Question

efetue as expressoes algebricas:
a=9x+12x-7x =
b=2a/5 - a/2=
c=ab - ab/3=
d=am+2am+19am=
e=0,3xao quadrado+1,4x ao cubo-2,8x ao cubo+0,4x ao cubo=

Answer 1

a) 9x + 12x - 7x = 14x
b) 2a/5 - a/2 = 4a/10 - 5a/10 = -a/10
c) ab - ab/3 = 3ab/3 - ab/3 = 2ab/3
d) am + 2am + 19am = 22am
e) 0,3x² + 1,4x³ - 2,8x³ + 0,4x³ = 0,3x² - x³