Question

Help me i really need this .no spam​

Answer 1

Question : 8

`11 √(5) + 4 √(7)`

Question : 9

• 
  `x = - 1`
• 
  `y = - 3`

Question : 11

• LHS isn't equal to RHS

Question : 12

• 
  `x = ( √(3) )/(2 √(2) )`

Solution is in attachment ~