" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 10 - √80 - √80 + 8
= 18 - 2√80
= 18 - 2√16√5
= 18 - 2*4√5
= 18 - 8√5
e. ( √7 + √12)^2 = ( √7 + √12) ( √7 + √12)
= 7 + √84+√84 + 12
= 7 + 2√84 + 12
= 19 + 2√4√21
= 19 + 2*2√21
= 19 + 4√21
= 10 - 2√180 + 18
= 28 - 2.√36 . √5
= 28 - 2.6√5
= 28 - 12√5
(√7 + √12)² = (√7)² + 2.√7 .√12 + (√12)²
= 7 + 2√84 + 12
= 19 + 2.√4.√21
= 19 + 2.2.√21
= 19 + 4√21