Solve for a? 2√a-1 = 4√a How would I solve this?
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(1) $\displaystyle 2\sqrt{a} -1 = 4\sqrt{a}$ Subtract $\displaystyle 2\sqrt{a}$ from both sides to obtain: $\displaystyle -1 = 2\sqrt{a}$ take the square from both sides to get: $\displaystyle 1= 4a$
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