October 2018 1 20 Report

1.doprowadz do najprostszej postaci wyrazenia:

a) (x-2)²+3(4-x)(x+4)-2(2x+1)²

b)(x+3)²-2(3-x)(x+3)+4(3x-1)²

2.doprowadz do najprostszej postaci wyrazenia:

a) 3x(x-0,5)+2(x+0.5)²-4(x-1,5)²

b) (x+2,5)²-2(x-0.5)(x+0,5)+6(0,5x-1)²

3. Doprowadz do najprostszej postaci i oblicz ich wartosci dla podanych zmiennych
a) (x-3)²+2(2x+1)²-3(x-2) dla x= -2

4. Uprosc ulamki

a) (a+b)² + (a-b)²/2

b)(a+b)²-(a-b)²/2b


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