Ask Question
17 July, 11:40

What value of c makes 36x^2+84x+c a perfect square trinomial?

a) 49

b) 7

c) 9

d) 4

+5
Answers (2)
  1. 17 July, 12:12
    0
    (6x+7) (6**7)

    Multiply 6x by 6x 36*2

    6 * (7) = 42*

    7 (6*) = 42*

    7 [7) = 49
  2. 17 July, 14:16
    0
    36x^2 + 84x + c

    The middle term in a perfect square trinomial =

    2 * sqrt a * sqrt c

    Divide 84 by 2 = 42

    Take the sqrt of 36 = 6

    42/6 = 7

    sqrt c = 7

    So c = 49
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What value of c makes 36x^2+84x+c a perfect square trinomial? a) 49 b) 7 c) 9 d) 4 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers