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Mathematics 9 Online
OpenStudy (anonymous):

.

OpenStudy (kira_yamato):

Squaring both sides: 2x + 3 = 6x - 1 4 = 4x x = 1

OpenStudy (kira_yamato):

Squaring both sides: b^4 = 25(4^2) b^4 = 400 b = ± (400)^0.25 = sqrt(20) = 4sqrt(5)

OpenStudy (kira_yamato):

i.e. b = ±4sqrt5

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