SOLUTION: give exact and approximate solutions to three decimal places. x^2+16x+64=4 what are the exact solutions? x= Thank You For Your Time

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Question 497684: give exact and approximate solutions to three decimal places. x^2+16x+64=4
what are the exact solutions?
x=
Thank You For Your Time

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


Add -4 to both sides



Factor. Hint: 6 times 10 = 60 and 6 plus 10 = 16.

Apply the Zero Product Rule to find the two solutions. Since the quadratic factors over the rationals, the roots are rational and exact. That is, there is no need for a numerical approximation for a solution set element that can be represented exactly numerically.

John

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