9x=30x^1/2-25

squaring both sides still leaves a radical. How to solve?
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1 Answer

9x=30x^1/2 -25

9x+25= 30x^1/2

81x^2 + 450x + 625 = 90x

81x^2 + 360x + 625 = 0

x= [-20+15i]/9 ; [-20-15i]/9 (hope you've done imaginary numbers)
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