October 2018 1 37 Report

1.Zredukuj. a) (3x-5)+(-6x+4)

b) (4x-7)-(12x-3)

c) 2x(3x-4y+2)

d) 3(a-b)-(2a+b+1)

e) (3x-2)(4x+3)-4-2x(3x-1)

2.Przedstaw w postaci iloczynu

a) 15a+30

b) 8ab(kwadrat) -4ab+6b

c) 2x(x+y)-3(x+y)

d) ab+ac+bd+dc e) 8ax+2bx-ay-by

3.Oblicz:

a) 3x+y(kwadrat) x=1/3 y= -1

b) x(kwadrat) -3x-4 x= -4


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