Simplify: sqrt13+2sqrt40\\sqrt{13 + 2\\sqrt{40}}sqrt13+2sqrt40
sqrt13+sqrt40\\sqrt{13} + \\sqrt{40}sqrt13+sqrt40
sqrt13\\sqrt{13}sqrt13
sqrt8−sqrt5\\sqrt{8} - \\sqrt{5}sqrt8−sqrt5
sqrt8+sqrt5\\sqrt{8} + \\sqrt{5}sqrt8+sqrt5