How do you solve (x + 6)^2 = 121?

1 Answer
Alan P.
May 8, 2016

x=-17
or
x=5

Explanation:

Given
color(white)("XXX")(x+6)^2=121

Therefore
color(white)("XXX")x+6 = +-sqrt(121) = +- 11

If
color(white)("XXX"){: (x+6=-11,color(white)("XXXX"),x+6=+11), (rarrx=-17,,rarrx=+5) :}

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