September 2018 1 13 Report

1.Wykonaj działąnia

a)(2x - 3) - (x + 5) + (x + 4)

b) (3a - 2) - (a + 4) + (a - 3)

c) 4(2y - 7y²) - 3(y² - 3y)

d) -5(2b + 3z) 2(2b - 4z)

2.Zamień sume na iloczyn.

a)3(x - 2) + 4(x - 2)

b) 8(x + 4) - 5(x + 4)

c) 3(x² - 7) + 8(x² - 7)

d)7(x - 3) - (x - 3)

e) 4(x + 5) + 20(x +5)

f) 0,2(-10 + x) - (x-10)

3.Wyłacz wspólny czynnik przed nawias.

a) -8x +6y -2

b)6a - 12b + 18c

c) 21x² + 14y³ - 7

d) - 1,6a - 0,8b - 4,8c

e) 4/5 x + 3/5 y + 1/5

f) 3 3/4 a + 6 1/4 b - 1 1/4


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