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Artemon [7]
3 years ago
11

Joline is solving the equation 0 = x2 – 5x – 4 using the quadratic formula. Which value is the negative real number solution to

her quadratic equation? Round to the nearest tenth if necessary. Quadratic formula: –5.7 –4 –1 –0.7
Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

Answer:

-5.7

Step-by-step explanation:

OUR EQUATION IS A QUADRATIC EQUATION

Let Δ be our dicriminant :

  • a= 1
  • b= 5
  • c= -4
  • Δ= 5²-4*1*(-4) =25 +16 =41≥0
  • so we have two solutions x and y
  • x= (-5-√41)/2 = -5.7
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