Skip to main content
Evaluate
Tick mark Image
Expand
Tick mark Image

Similar Problems from Web Search

Share

4\left(\sqrt{2}\right)^{2}-20\sqrt{2}+25
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2\sqrt{2}-5\right)^{2}.
4\times 2-20\sqrt{2}+25
The square of \sqrt{2} is 2.
8-20\sqrt{2}+25
Multiply 4 and 2 to get 8.
33-20\sqrt{2}
Add 8 and 25 to get 33.
4\left(\sqrt{2}\right)^{2}-20\sqrt{2}+25
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2\sqrt{2}-5\right)^{2}.
4\times 2-20\sqrt{2}+25
The square of \sqrt{2} is 2.
8-20\sqrt{2}+25
Multiply 4 and 2 to get 8.
33-20\sqrt{2}
Add 8 and 25 to get 33.