1) Take the perimeter and divide it by 4.
2) Take the answer from step 1 and square it (multiply by itself)
√2 is irrational
a rational number Q can be expressed in the form
where a and b are integers.
- 18 =
⇒ rational
⇒ rational
3.14 =
⇒ rational
√2 = 1.414213562...... ⇒ irrational
One way is to move the 4 to other side so it would be x = 13 - 4 and that's x = 9
First : x=-5-y and then put x in the phrase above