równanie kwadratowe Podpunkt c)Proszę o pomoc
(4x+4)-5^2=0
(4x+4-5)(4x+4+5)=0
(4x-1)(4x+9)=0
4x=1 v 4x=9
x=1/4 v x=9/4
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(4x+4)-5^2=0
(4x+4-5)(4x+4+5)=0
(4x-1)(4x+9)=0
4x=1 v 4x=9
x=1/4 v x=9/4