zredaguj wyrazy podobne 2to do potęgi _2
a) 2ab-6-ab-(-3)=
b) 3x _2-2y_2-6x_2-2y_2
c) 3,5b-2,4c-0,6c-0,5b
d) 3x_2-2x+1+x-4x_2-2
e) 2m_2+3mn-n+mn-3n-m_2
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a) ab-3
b)-3x_2-4y_2
c)3b-3c
d)-x_2-x-1
e)m_2+4mn-4n
a) 2ab -6 -ab -(-3) = ab -3
b) 3x^2 -2y^2 -6x^2 -2y^2= -3x^2 -4y^2
c) 3,5b -2,4c -0,6c -0,5b= 3b - 3c
d) 3x^2 -2x +1 +x -4x^2 -2 = -x^2 -x -1
e) 2m^2 +3mn -n +mn -3n -m^2 = m^2 +4mn -4n