formule de calcul
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7 QuestionsShow answers
  • Question 1
    120 seconds
    Q.

    ( x+3)2=

    answer choices

    x2+9

    x2+6x+9

    x2-6x+9

    x2+6x+3

  • Question 2
    120 seconds
    Q.

    (x-5)2=

    answer choices

    x2-10x+25

    x2+25

    x2+10x+25

    x2-25

  • Question 3
    120 seconds
    Q.

    (y-1)2=

    answer choices

    y2+2y+1

    y2-2y+1

    y2+2y

    y2-1

  • Question 4
    120 seconds
    Q.

    ( a+2x)2=

    answer choices

    x2+4ax+4a2

    a2-4ax-4x2

    a2+4ax+4x2

    a2+2ax+2x2

  • Question 5
    120 seconds
    Q.

    (x+0,2)2=

    answer choices

    x2+4

    x2+0,4x+4

    x2+0,4x+0,4

    x2+0,2x+0,2

  • Question 6
    120 seconds
    Q.

    (x-1/2)2=

    answer choices

    x2+1/4

    x2+0,4x+4

    x2+1/4x+1/4

    x2-x+0,25

  • Question 7
    120 seconds
    Q.

    (5-n)2=

    answer choices

    5-10n+n2

    25+10n+n2

    25-10n+n2

    2,5-5n+n2

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