evaluation of convergence of series with irrational terms

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Evaluation of convergence of series $$\sum^{\infty}_{k=1}\frac{5\sqrt{k}}{6k^2\sqrt{k}-2k+7}$$ using camparasion or limit Camparasion Test

What i try

$$\sum^{\infty}_{k=1}\frac{5\sqrt{k}}{6k^2\sqrt{k}-2k+7}\approx\sum^{\infty}_{k=1}\frac{5\sqrt{k}}{6k^2\sqrt{k}}=\frac{5}{7}\sum^{\infty}_{k=1}\frac{1}{k^2}.$$

Which is converge using $p$ series test.

So our original series is converges.

But i have a problem i have just approximate it.can anyone explain me a fair way to do it. Thanks

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It is enough to show that

$$\frac{5\sqrt{k}}{6k^2\sqrt{k}-2k+7}<\frac1{k^2}.$$