Question

X²-5X-8=0 ?? socorro​

Answer 1

resposta:

x²-5x-8=0

a=1 b=-5 c=-8

delta= b²-4.a.c

delta= (-5)²-4.1.(-8)

delta= 25+32= 57

• baskara

-(-5)+- raiz de 57/ 2 >> 5 +- 57/2

x¹= 5+57/2 = 33,5 x²= 5-57/2= -23,5