Question

14.
Zapisz w jak najprostszej postaci.
a) 2x * (-3y)
-------------------------
-2
b) 6p * 2q
-----------------------
4
c) 0,5 ab * (-a)
--------------------------
¼

Answer 1

A) 2x * (-3y)
------------------------- = -x*(-3y)=3xy
-2

b) 6p * 2q
----------------------- = 3pq
4

c) 0,5 ab * (-a) -a²b
-------------------------- = -------- = -2a²b
¼ 1/2

Answer 2

A) 3xy
b) 3pq
c) 2a²b

Answer 3

A) 2x * (-3y)/-2 = -6xy/-2 = 3xy


b) 6p * 2q/4 = 12pq/4 = 3pq


c) 0,5 ab * (-a)/¼ = -0,5a²b/¼ = -2a²b