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OpenStudy (anonymous):
Give exact & approximate solutions to three decimal places (x-9)^2=4
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OpenStudy (chaise):
Expand your brackets: (x-9)^2=4 x^2-18x+81=4 Bring the 4 to the other side of the equation, making it equal to 0. x^2-18x+77=0 Factor: (x-11)(x-7) x-11=0 x=11 or x-7 = 0 x =7
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