Question

plzz sove using identity property=(a+b)^2=a^2+2ab+b^2

Answer 1

${5a}^{2} + {3b}^{2} + 2 \sqrt{15} ab$

Answer 2

(√5*a+√3*b)²²=(√5a)²+2(√5a)(√3b)+(√3b)²
                      =√5*5 a² + 2ab*√5*3 + √3*3 b²
                      =5a²+2√15ab+3b²