1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kotykmax [81]
2 years ago
5

Solve each quadratic equation by factoring and check

Mathematics
1 answer:
max2010maxim [7]2 years ago
5 0

hello : <span>
<span>the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 )  Δ > 0  the equation has two reals solutions : x1,2 =  (-b±√Δ)/2a</span></span>

factoring :

<span>ax²+bx+c = a(x-x1)(x-x2)
2 ) Δ = 0 : one solution : x1 = x2 = -b/2a</span>

factoring  : 

<span>ax²+bx+c = a(x-x1)²
3 ) Δ < 0 : no reals solutions... no </span>

<span>factoring </span>
You might be interested in
Problem: (5x^4 – 3x^3 + 6x) – (3x^3 + 11x^2 – 8x)<br><br> Answer: 5x^4-6x^3 -11x^2 +14x
g100num [7]
Combine the like terms by adding the coefficients,
->5x^4 can't add anything so leave it there,
->-3x^3 can add -3x^3 which gives you -6x^3,
->We can't do anything with -11x^2 so leave it there as well,
->6x add to -(-8x) gives you 14x,
You will get for your final answer is 5x^4-6x^3-11x^2+14x.
8 0
2 years ago
A rectangle on a coordinate plane has vertices (-1.1), R(6, 1). S(6.-8), and T(-1,-8). What are the dimensions of the
Monica [59]

Answer:

b. the base is 9 and the height is 6

Step-by-step explanation:

6 0
2 years ago
Is 24.48 a interger​
Sergio039 [100]

This is not an integer; an integer is a whole number that can be positive, negative, or zero such as -1, 0, and 1.

7 0
2 years ago
Read 2 more answers
V= 2i +9j Find ||9v||
Korvikt [17]

Answer:

9\sqrt{85}

Step-by-step explanation:

9v = 9(2i + 9j) = 18i + 81j

|9v | = \sqrt{18^2+81^2} = \sqrt{x6885} = 9\sqrt{85}


8 0
3 years ago
A survey at your school found that 842 in 989 students have a cell phone. What percent of the student in school has a cell phone
Mumz [18]

Answer:

85.14% of the students have a cell phone.

8 0
2 years ago
Read 2 more answers
Other questions:
  • Plz answer this quickly
    8·1 answer
  • What is 2.25x+5=13.5x+14
    12·1 answer
  • A scatter plot is made to model the amount of money left to pay on a car loan. The data used for the scatter plot are shown in t
    12·2 answers
  • Distribute the following expression: 9(2g+5)?
    14·2 answers
  • Which letters have line symmetry choose our answers that are correct
    8·1 answer
  • How do I find the slope if the fraction is improper? Do I leave it the same or?
    7·2 answers
  • The endpoints of a circle's diameter are (5, -4) and (5, 4). What is the area of the circle in terms of pi?
    8·1 answer
  • Please it is timed will give 30 points
    15·2 answers
  • Please help me !!! i will mark brain-list for the correct answer !!!
    9·1 answer
  • Can i get some help :
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!