Question

!! WILL GIVE BRAINEST TO WHOEVER ANSWERS FIRST !!

Simplify (2√5 + 3√7)² Show ALL your work.

Answer 1

a = 2√5 , b = 3√7

(a+b)² = a² + 2ab + b² = (2√5)² + 2(2√5)(3√7) + (3√7)²
= 4*5 + 12√35 + 9*7
= 83 + 12√35