Question

adding irrational numbers (I)25√2+6√2. (ii) 8√5- 2√5. (iii) 9√3-3√3. (iv) 12√6+18√6. (v) 17√11+3√11 (vi) 7√3-6√3​

Answer 1

[1] 25√2 + 6√2  =  31√2  

Since these are like terms [ √2 in both numbers ] , we can simply add them .

[2] 8√5 - 2√5 = 6√5 [ same like 1st part ; we don't add or subtract the numbers given in roots ex - √2 , √3 ,etc. ]

[3] 9√3 - 3√3 = 6√3

[4] 12√6 + 18√6 = 30√6

[5] 17√11 +3√11 = 20√11

[6] 7√3-6√3 = 1√3 or √3