Question

if two minus root 5 upon 2 + 3 root 5 is equal to root 5 a + b find a and b

Answer 1

2-√5/2+3√5=√5×a+b

2-√5+2(3√5)/2=√5+a+b

2-√5+6√5/2=√5+a+b

2+5√5/2=√5+a+b

Compare both of them with a and b

2/2=a
1=a

5√5/2=√5+b

5/2=b