answersLogoWhite

0

x2 + 8x - 5 = 0

∴ x2 + 8x + 16 = 21

∴ (x + 4)2 = 21

∴ x + 4 = ± √21

∴ x = -4 ± √21

User Avatar

Wiki User

15y ago

What else can I help you with?