Ask Question
19 May, 16:56

Given f (x) = 3x^2+2x-10 and g (x) = 3x-3 If g (f (x)) = 2

+1
Answers (2)
  1. 19 May, 19:39
    0
    f (x) = 3x^2+2x-10 if x=2

    f (x) = 3 (2) ^2+2 (2) - 10

    f (x) = 3 (4) + 2 (2) - 10

    f (x) = 12+4-10

    f (x) = 16-10

    f (x) = 6

    g (x) = 3x-3 if g (x) = 2

    g (x) = 3 (2) - 3

    g (x) = 6-3 = 3

    Step-by-step explanation:

    f (x)

    replace x by 2 do exponent distribute the brackets do addition and subtraction

    g (x)

    replace x by 2 distribute the bracket do subtraction
  2. 19 May, 19:45
    0
    5/3 and - 7/3

    Step-by-step explanation:

    Given f (x) = 3x²+2x-10 and g (x) = 3x-3

    g (f (x)) = 2 : g (3x²+2x-10) = 2

    replace x with : 3x²+2x-10 in g (x)

    3 (3x²+2x-10) - 3 = 2

    9x²+6x - 35 = 0

    the discriminant delta = b² - 4ac a = 9 and b=6 and c = - 35

    delta = 6² - 4 (9) (-35) = 1296 = 36²

    x1 = (-6+36) / 18 = 30/18 = 5/3

    x2 = (-6-36) 18 = - 42/18 = - 7/3
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Given f (x) = 3x^2+2x-10 and g (x) = 3x-3 If g (f (x)) = 2 ...” 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