Question

7+3√5÷7-3√5=a+b√5
What are the values of a and b

Answer 1

Answer:

Everything is explained in above picture

Hope so it's helpful...

Answer 2

Answer:a=23.5 b=10.5

Step-by-step explanation:

7+3√5÷7-3√5=a+b√5

(7+3√5)(7+3√5)÷(7-3√5)(7+3√5)

(7+3√5)²/7²-(3√5)²

(7+3√5)²/49-45

49+45+42√5/4

94+42√5/4

94/4+42√5/4

23.5+10.5√5

a=23.5 b=10.5