Question

if a square is equal to 5 a minus 3 ,b square is equal to 5b minus 3 ,then a + b equal to?​

Answer 1

Answer:±(5+√13)

Step-by-step explanation:a^2=5a-3

a^2-5a+3=0

a=5±√(25-12)/2

a=(5±√13)/2

Similarly,b=(5±√13)/2

For +,

a+b=(10+2√13)/2

For -,

a+b=-(10+2√13)/2

So a+b=±2(5+√13)/2

a+b=±(5+√13)