Bentuk sederhana dari 3-√2/(5-2√2)(1+√2)=

3-√2 / (5-2√2)(1+√2)
= 3-√2 / 5 +5√2 - 3√2 - 4
= 3-√2 / 1 + 2√2
= 3-√2 / 1+2√2 × 1-2√2 / 1-2√2
= 3-√2 (1-2√2) / 1-8
= 3-6√2-√2+4 / 7
= 7 - 7√2 / 7
= 1 - √2