Question

Quais raízes da equacao y2+17y+72=0​

Answer 1

a=1

b=17

c=72

∆=b^2 - 4 × a × c

∆=(17)^2-4×1×72

∆=289-288

∆=1

x= -b +√∆/2×a
x= -17 + √1/2×1

x=-17+1 /2 x= 16/2 =8

x= -17-1/2 x= -18/2=9

espero ter ajudado ❤️