Okay so first im going to show you how to do the square root of 14.You need perfect squares which for 14 they would be 9 and 16. Then you need to find whats in the middle of 9 and 16 which would be 13. Because 13 is in the middle your answer would be 3.6. The real answer that i got was 3.7 when i put it in the calcutor