Question

19.The value of (√80-√112)/(√45-√63)

Answer 1

Given (root 80 - root 112)/(root 45 - root 63)

    =    - (root 112 - root 80)/- (root 63 - root 45)

    =     (root 112 - root 80)/(root 63 - root 45)

    =     4 root 7 - 4 root 5/ 3 root 7 - 3 root 5

    =     4(root 7 - root 5)/(3(root 7 - root 5)

   =      4/3.


Hope this helps!

Answer 2

Answer:

Given (root 80 - root 112)/(root 45 - root 63)

   =    - (root 112 - root 80)/- (root 63 - root 45)

   =     (root 112 - root 80)/(root 63 - root 45)

   =     4 root 7 - 4 root 5/ 3 root 7 - 3 root 5

   =     4(root 7 - root 5)/(3(root 7 - root 5)

  =      4/3.

Step-by-step explanation: