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5 questions
dezvoltarea binomului
(x−3)2=x2−6x+9
x2−9
x2+9
x2−6x
formula
(a−b)2=a2−2ab+b2 (cu adevarat si fals)(x−4)(x+4)=
2x−8
x2−16
x2−8
x−4
formula
(a+b+c)2=a2+b2+c2+2ab+2ac+2bc (Cu A sau F)formula
(2x−1)2=4x2−1 (cu A sau F)Explore all questions with a free account