Question

Tolong saya seceptnya

Answer 1

13)
a√a + b√b / √a + √b
= a√a+b√b / √a+√b . √a-√b / √a-√b
= a.a+a√ab+ b√ab+b.b / a-b
= a² + (a+b)√ab + b² / a - b
= a² + b² + (a+b)√ab / a - b