Question

find the value of a and b 7+3√5÷3+√5 = a+b√5​

Answer 1

Answer:

7+3√5/3+√5

= 7+3√5/3+√5×3-√5/3-√5

= 7+3√5(3-√5)/9-5

= 21-7√5+9√5-15/4

= 6+2√5/4

a+b√5 = 6/4+2√5/4

a+b√5 = 2/3 +√5/2

a= 2/3

b= 1/2.

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