Ask Question
18 May, 07:23

Solve the radical equation. x+1 = square root of - 6x-6

+1
Answers (1)
  1. 18 May, 09:36
    0
    Step-by-step explanation:

    Step1: isolate the square root on the left hand side.

    Original equation : x+1=√-6x-6

    Isolate : x+1=√-6x-6.

    Step2: raise both sides to the second power.

    (x+1) ^2 = (√-6x-6) ^2

    (x+1) (x+1) = -6x-6

    Step3: after squaring, solve the quadratic equation.

    x^2+2x-1=-6x-6

    x^2+8x+7=0

    x^2+7x+x+7=0

    x (x+7) + 1 (x+7) = 0

    (x+1) (x+7) = 0

    x=-1,-7

    Step4:check that the first solution correct.

    Input x=-1 into the original equation

    x+1=√-6x-6

    -1+1=√+6-6

    0=0

    Step5:check that the second equation is correct.

    Input x=-7 into the original equation

    x+1=√-6x-6

    -7+1=√42-6

    -6=√36

    -6#6

    Therefore one solution is found.

    x=-1
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Solve the radical equation. x+1 = square root of - 6x-6 ...” 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