Question

2 root 5 minus 3 root 45 + 2 root 20..?...(pls help me)​

Answer 1

Answer:

see the above attachment saw in Google

Answer 2

Step-by-step explanation:

Answer:

\frac{2\sqrt{45}+3\sqrt{20}}{2\sqrt{5}}=6=Rational\: number25245+320=6=Rationalnumber

Step-by-step explanation:

\frac{2\sqrt{45}+3\sqrt{20}}{2\sqrt{5}}25245+320

=\frac{2\sqrt{3\times 3\times 5}+3\sqrt{2\times 2\times 5}}{2\sqrt{5}}=2523×3×5+32×2×5

=\frac{2\times 3\sqrt{5}+3\times 2\sqrt{5}}{2\sqrt{5}}=252×35+3×25

\begin{gathered}=\frac{2\sqrt{5}(3+3)}{2\sqrt{5}}\\=6\\=Rational\: number\end{gathered}=2525(3+3)=6=Rationalnumber

Therefore,

\begin{gathered}\frac{2\sqrt{45}+3\sqrt{20}}{2\sqrt{5}}=6\\=Rational\: number\end{gathered}25245+320=6=Rationalnumber