Use the quadratic formula to solve the quadratic equation x2 − 8x − 4 = 0.

1 answer:

4 0

Hello here is a solution :
x² − 8x − 4 = 0.
quadratic equation ax²+bx+c = 0 when : a=1 and b= -8 and c = -4
discriminant : d = b²-4ac d= (-8)²-4(1)(-4) =64+16 =70
x= (-b-rot(d))/2a x'= (-b+rot(d))/2a .......conrinu

You might be interested in

The tennis team is creating one doubles team to play at its matches. There are 13 people on the tennis team. How many different

Lelu [443]

As only one team is to be made that means we have to choose 2 people from total 13 people. As the order that two people are selected does not matter here so we just have to make all possible combination of the team So the answer is 13*12/2 answer= 78 ways

3 0

2 years ago

the bed of Jerrys pickup truck is 6 feet long. On a scale model of the truck, the bed is 8 inches long. What is the scale of the

RideAnS [48]

I have seen some scales that convert units and some that don't

first is convert

the scale converts from smaller to bigger
?:1in
6ft/8in=0.75ft/1
scale is 0.75ft:1in

other one doesn't convert dimentions

6ft=6*12in=72in
72in:8in
9:1

that is most ilkely what teacher is looking for
scale is 9:1

72in:8in

3 0

2 years ago

Where would you place the tic mark for the fraction 3/3 explain

Oxana [17]

Answer:

you don't have to bc that one whole

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Which equation represents the line that passes through (–6, 7) and (–3, 6)?

Aneli [31]

Answer:

1/3x + 5

Step-by-step explanation:

This equation changes 1 y for every 3 x and therefore we get 1/3x. This equation will cross the y axis in point(0,5) and we get + 5 for when x = 0

5 0

2 years ago

Write the following set using roster notation. Do not include repeats.

Annette [7]

Answer:

Step-by-step explanation:C

4 0

2 years ago