cearramarrieor6mo8 cearramarrieor6mo8
  • 15-06-2017
  • Mathematics
contestada

What is the value of b2 - 4ac for the following equation?

x(x + 8) = 9

Respuesta :

katyp02 katyp02
  • 15-06-2017
This is the formula for the top of a quadratic equation so it would be 8^2-4(1)(-9)
Answer Link
hanima
hanima hanima
  • 15-06-2017
x²+8x=9
x²+8x-9=0

b²-4ac
a=1 b=8. c=-9

8²-4(1)(-9)
64-36
28

sorry if I'm wrong m8
Answer Link

Otras preguntas

If, 2=5 3=10 4=17 5=??
How are radioactive probes useful in DNA fingerprinting
of the400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United States. One-third of the family medici
If, 2=5 3=10 4=17 5=??
Find the error Jacob is finding the slope of the line that passes through x(0,2) and y(4,3).circle his mistake and correct it.
round this number 3.899 to the nearest hundredth
If, 2=5 3=10 4=17 5=??
Find the error Jacob is finding the slope of the line that passes through x(0,2) and y(4,3).circle his mistake and correct it.
How are radioactive probes useful in DNA fingerprinting
round this number 3.899 to the nearest hundredth