5 (x - 2)2 = 125
Divide each side of the equation by 5:
(x - 2)2 = 25
Take the square root of each side:
x - 2 = sqrt(25) = +5 and -5
The first solution:
x - 2 = 5
x = 7
The second solution:
x - 2 = -5
x = -3
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3u2-1
5 times 2 square equals 20 minus 29 equals -9
That won't factor neatly, so we apply the quadratic formula. x = -8 plus or minus 2 times the square root of 5 x = -3.5278640450004204 x = -12.47213595499958
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