Question 1206190
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     Step by step



    (x + 6)^2 = 36


Take square root of both sides

    x+6 = +/- 6.


Consider two cases in succession


    (a)  x+6 = 6  --->    x= 0.


    (b)  x+6 = -6  --->  x= -12.


<U>ANSWER</U>.  The two solutions are -12 and 0.
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Solved.


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This case is an example of a quadratic equation, which can be easily solved
without using the quadratic formula.