Question

how do you simplify this

Answer 1

\[7(\sqrt{2}/2) -2(\sqrt{2}/2)\]

Answer 2

\(\bf 7\left(\cfrac{\sqrt{2}}{2}\right) - 2 \left(\cfrac{\sqrt{2}}{2}\right)\\
\textit{if we make say }\left(\cfrac{\sqrt{2}}{2}\right) = a\\
\textit{then it'd look like}\\
7a - 2a \implies \square?\)

Answer 3

5a

Answer 4

\(\bf 7a - 2a \implies 5a \implies 5\left(\cfrac{\sqrt{2}}{2}\right) \implies 5 \times \left(\cfrac{\sqrt{2}}{2}\right) \implies \cfrac{5\sqrt{2}}{2}\)

Answer 5

ok thanks

Answer 6

yw