Question

x²+8x-16=0 AJUDEM!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

/\ = 8² - 4.1.(-16)
/\ = 64 + 64
/\ = 128
x = (-8+/- \/128)/2.1
x = (-8+/- \/64.2)/2
x = (-8+/-8\/2)/2
x = -4+/-4\/2
x' = -4+4\/2
x" = -4-4\/2