Question

simplify;
a= (√2+√3)(√2-√3)
b= (√5+√3)^2​

Answer 1

Here is your answer

a=(√2+√3)(√2-√3)

(a+b)(a-b)= a²-b²

( √2)²-(√3)² = 2-3 = -1

b=(√5+√3)²

(a+b)²=a²+b²+2ab

√5²+√3²+2(√5)(√3)

5+3+2√15

Hope it helped you

Have a nice day

✓ 8+2√15