Ask Question
5 April, 01:13

If (4x-7) 2=ax2+bx+c for all values of x, what is the value of c (b+a) ?

+2
Answers (1)
  1. 5 April, 04:25
    0
    -1960

    Step-by-step explanation:

    The expression on the left expands to ...

    (4x - 7) ² = (4x) ² + 2 (4x) (-7) + (-7) ² = 16x² - 56x + 49

    Matching coefficients, you have ...

    a = 16 b = - 56 c = 49

    Then the expression c (b+a) evaluates to ...

    49 (-56+16) = 49 (-40) = - 1960
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “If (4x-7) 2=ax2+bx+c for all values of x, what is the value of c (b+a) ? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers