Question

Упростите выражение: 7√3 + √48 - 4√75

Answer 1

$7 sqrt{3}+ sqrt{48}-4 sqrt{75}= 7 sqrt{3}+ sqrt{16*3}-4 sqrt{25*3}= \ =7 sqrt{3}+ 4sqrt{3}-4 *5 sqrt{3}= 11sqrt{3}-20sqrt{3}= -9sqrt{3}$