Question

20 pontos! Questões de matemática:

a- (-2/5x^4y³):(-4x³y)

b- (3/2a^5b²):(4/3a²b)

c- (5a³):(-2/3a)

d- (-2ab):(3b)

e- (5x³y):(-7x^4y)

f- (-4/5x^5y):(4/3x²y)

Answer 1

a)
$(- \frac{2}{5} x^{4} y^{3} ):(-4 x^{3}y)= \frac{1}{10} x y^{2}$
b)

$( \frac{3}{2} a^{5} b^{2} ):( \frac{4}{3} a^{2} b)= \frac{9}{8} a^{3} b$

c)
   $(5 a^{3} ):(- \frac{2}{3} a)=- \frac{15}{2} a^{2}$

d)
   $(-2ab):(3b)=- \frac{2}{3} a$
e)
   $(5 x^{3} y):(-7 x^{4} y)=- \frac{5}{7} x^{-1}$
f)
  $(- \frac{4}{5} x^{5} y):( \frac{4}{3} x^{2} y)=- \frac{3}{5} x^{3}$