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
elixir [45]
3 years ago
12

What are the solutions to the quadratic equation 4x2 + 28x = 0?

Mathematics
2 answers:
lisabon 2012 [21]3 years ago
7 0

Answer:

x = {-7, 0}

Step-by-step explanation:

4x^2 + 28x = 0

Divide both sides by 4

x^2 + 7x = 0

Factor out x

x(x + 7) = 0

---------------------------

From the zero product rule

x = 0

and

x + 7 = 0

subtract 7 from both sides

x = -7

x = {-7, 0}

AleksandrR [38]3 years ago
6 0

Answer:

x is 0 or -7

Step-by-step explanation:

4x^{2} +28x=0\\4x(x} +7)=0\\4x=0 x=0\\x+7=0\\x=-7

You might be interested in
Cans of regular soda have volumes with a mean of 13.3813.38 oz and a standard deviation of 0.110.11 oz. is it unusual for a can
dimulka [17.4K]
No 13.3813 + 0.1100 = 13.4913. (max. standard deviation)
13.4813 is less than max. standard deviation
8 0
3 years ago
You make a large bowl of salad to share with your friends. Your brother eats 1/3 of it before they come over. You want to divide
shepuryov [24]
Divide 1/3 by 6 and there is your answer
6 0
3 years ago
Answer in scientific notation?
love history [14]
The answer is:  45 * 10 ⁻¹¹ .
___________________________________________

Explanation:
____________________________________________
Given:   (9 * 10⁻⁵) * (5 *10 ⁻⁶) ;   Simplify.
____________________________________________
 (9 * 10⁻⁵) * (5 *10⁻⁶)  =

9 * 5 * 10⁻⁵ * 10⁻⁶ = 

(9 * 5) * 10⁻⁵ * 10⁻⁶ 

45 * 10⁻⁵ * 10⁻⁶  ;   
______________________________________
Note the following property of exponents:

xᵃ * xᵇ = x⁽ᵃ⁺ᵇ⁾ ;

As such, 10⁻⁵ * 10⁻⁶ = 10⁽⁻⁵ ⁺ ⁻⁶) = 10 ⁻¹¹ ;
______________________________________
So;  45 * 10⁻⁵ * 10⁻⁶ 

           =  45 * 10⁻¹¹ .
______________________________________

7 0
3 years ago
Does the size of parachute affect the speed and why
Kryger [21]
Yes it does , more mass area = less space
6 0
3 years ago
Find the area of the composite figure
Orlov [11]
8 x 7 x 10 x 6 = 3360 ft . I believe this should be the answer. 
8 0
3 years ago
Read 2 more answers
Other questions:
  • Change 8.75 to a fraction
    8·2 answers
  • Find the difference of the two polynomials : (2t^3 + 3t -4)-(4t^2 - 6t)
    13·1 answer
  • PLEASE HELP! 40 POINTS AND WILL MARK BRAINLIEST.
    12·2 answers
  • A particular sound wave can be graphed using the function y = 1 sin 2x . Find the amplitude of the function.
    9·2 answers
  • Percents
    10·1 answer
  • Which options could be the next step in simplifying this expression?   (18 + 23) + 7   Choose exactly two answers that are corre
    8·1 answer
  • A ball is thrown into the air. The path it takes is modeled by the equation: -3t+24t = h, where t is the time in seconds and h i
    14·1 answer
  • Given sin=300° , determine which of the following is an equivalent expression.
    15·1 answer
  • Find the probability of rolling an odd number on a fair number cube and drawing a 7 of any suit from a standard deck of cards.
    8·2 answers
  • How do I find the value of x?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!