" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(3 + 2√2)² = 9 + 12√2 + 8 = 17 + 12√2
b)
(2√5 - 3)² + (√5 + 4)² = 20 - 12√5 + 9 + 5 + 8√5 + 16 = 50 - 4√5
c)
(x² - 2)(2 + x²)(x - 3) = (2x² + x⁴ - 4 - 2x²)(x - 3) = (x⁴ - 4)(x - 3) = x⁵ - 3x⁴ - 4x + 12