think wrote:Give the exact and approximate solutions to three decimal places
(x+8)^2=1
This is probably most-simply solved by
taking square roots. For instance:
. . . . .. . . . .. . . . .The above would be the "exact" solution. The "approximate" solution would be found by plugging each of:
. . . . ....into your calculator, and rounding the outputs to the required three decimal places.
Note: In this particular case, the "exact" solution won't involve square roots. For the "approximate" solutions, you'll have to tack on three (entirely unnecessary) zeroes after the decimal point.