lexinicolepierce lexinicolepierce
  • 25-03-2019
  • Mathematics
contestada

x2 + 3x - 4 = 0 Find the value of the discriminant. A) 5 B) 6 C) 10 D) 25

Respuesta :

jimrgrant1 jimrgrant1
  • 25-03-2019

Answer:

D

Step-by-step explanation:

given a quadratic equation in standard form

ax² + bx + c = 0, then the discriminant is

Δ = b² - 4ac

x² + 3x - 4 = 0 ← is in standard form

with a = 1, b = 3, c = - 4

b² - 4ac = 3² - (4 × 1 × - 4) = 9 - (- 16) = 9 + 16 = 25 → D

Answer Link

Otras preguntas

Can somebody come thru with the answer?
Use algebraic rules of equations to predict the solution type to the system of equations. Include all of your work for full credit. {x+y=-4 {y=2x-1
St.louis is located where the Mississippi River meets the ____
HELP !!! PLZ Sam spent 5/6 of an hour at the dentist’s office. He spent 1/10 of the time in the waiting room. How much time did he spend at the dentist’s office
Which statement is true regarding achievers?
Where would someone look to find the most reliable information about how tornadoes are measured? * 4 points A newspaper story about a storm The personal blog of
Which statement best describes the king’s actions?
can someone solve this?​
what are socio economic issues
The sections of rock from diffrent eras that are used to date fossils are called?