Ask Question
4 March, 06:15

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. 4 March, 06:25
    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
  2. 4 March, 06:44
    0
    (6x+7) (6**7)

    Multiply 6x by 6x 36*2

    6 * (7) = 42*

    7 (6*) = 42*

    7 [7) = 49
Know the Answer?
Not Sure About the Answer?
Find 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 the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers