AM-509

Equations with surds

A Math · Secondary 3 · Medium · Equations with surds

Without using a calculator, solve

m\sqrt{5}-\sqrt{45}=2m+1

for

m

.

$17+7\sqrt5$
$17-7\sqrt5$
$7+17\sqrt5$
$\dfrac{3\sqrt5+1}{\sqrt5-2}$

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