svensebjohn svensebjohn

13-01-2020
Mathematics

contestada

which of the following are solutions to the equations below x^2-10x+25=7

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PollyP52 PollyP52

13-01-2020

Answer:

x = 5 +/- √7.

or

x = 7.65, 2.35 to the nearest hundredth.

Step-by-step explanation:

x^2-10x+25=7

x^2 - 10x = -18

(x - 5)^2 - 25 = -18

(x - 5)^2 = 7

x - 5 = +/-√7

x = 5 +/- √7.

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