January 2019 1 43 Report
1.
a) (3x+1) (3x-1) (1+9x^2)
b) (2x- 1/2)^2 - (2x+1/2)^2
2.
a) x^2-2=0
b) 27x^2+8=0
c) 2x^2+ 2x-3=0
d) 2/3 x^2= -2x
e) 4x^3-x=0
f) (x-9) (2x+1) (2x-3)=0
h) -2x^3+9x^2+5x=0

Mam to obliczone, ale nie jestem pewna co do rozwiązań i chciałabym je sprawdzić ze swoimi :)
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