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18 February, 20:56

Given the following perfect square trinomial, find the missing term: ___x2 + 40x + 100 1 2 4 10

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Answers (2)
  1. 19 February, 00:11
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    4

    Step-by-step explanation:

    You're welcome.
  2. 19 February, 00:35
    0
    4

    Step-by-step explanation:

    The correct option is 4.

    Put 4 in the missing term because 4 is a perfect square and it satisfies the given expression:

    4x2 + 40x + 100

    Now multiply the 1st term coefficient with 100

    4 * 100 = 400

    Now find two numbers whose product is 400 and whose sum is 40

    20*20 = 400

    20+20 = 40

    Therefore 4 is the correct missing coefficient because it satisfies the expression:

    Thus the correct option is 4 ...
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