SOLUTION: Solve (V+4)squared -49=0 where v is a real number. Simplify your answer as much as possible.there may be more than one answer. Or there may be no solution.

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Question 1140825: Solve (V+4)squared -49=0 where v is a real number. Simplify your answer as much as possible.there may be more than one answer. Or there may be no solution.
Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
They want you solve the equation


 - 49 = 0.


It is VERY SIMPLE.


First, move 49 from the left side of the equation to the right side, changing the sign. You will get


 = 49.


Next step, take square root of both sides.  Square root of 49 is  +/- 7, so you will get


    V + 4 = +/- 7.


Last step is to move "4" from the left side to the right side, changing its sign. You will get


    V = - 4 +/- 7.


Thus, you have two solutions   = - 4 + 7 = 3   and    = -4 - 7 = -11.     ANSWER


You may check the answer on your own by substituting the found values into the original equation.


The given equation was very simple - therefore, the solution is simple, too.



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