Question

✓a + ✓b = 7 and 2✓a + 3✓b = 17 . Find a and b​

Answer 1

Answer:

a = 16 , b = 9

Step-by-step explanation:

✓a + ✓b = 7                     so ,  ✓b = 7 - ✓a

or , 2(✓a + ✓b) = 7*2 = 14

or, 2✓a +2 ✓b = 14

Now ,

2✓a + 3✓b = 17

or ,  2✓a + 2✓b+✓b = 17

or ,  14 + ✓b = 17

or,   ✓b = 17-14 = 3

or,  ✓b = 3

or, b = 3^2 = 9

Now,

✓b = 7 - ✓a  

or, 3 =  7 - ✓a

or,   ✓a = 7-3 = 4

or,  a = 4^2 = 16

So the ans is : a = 16 , b = 9