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
Marianna [84]
3 years ago
7

What's the first step of solving -x^2-4x+16=0 ??? NOW!

Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0

Answer:

Step-by-step explanation:

Use the Quadratic Formula.

-x² - 4x + 16 = 0

x = [4±√(4²-4(-1)(16)]/[2(-1)] = [4±√80]/(-2) = [4±4√5]/(-2) = -2±2√5

You might be interested in
Which pair of monomials has the least common multiple (LCM) of 54x2y3?
Lera25 [3.4K]

ANSWER

The correct answer is D.

EXPLANATION

If we express the monomial,

18 {x}^{2} y

as product of primes, we obtain:

2 \times  {3}^{2}  \times  {x}^{2}y

If we express the monomial

27x {y}^{3}

as product of primes we obtain:

=  {3}^{3}  \times x {y}^{3}

The least common multiple of these two binomials is the product of the highest powers of the common factors.

The LCM is

= 2 \times  {3}^{3}  \times  {x}^{2} {y}^{3}

=54 {x}^{2} {y}^{3}

Therefore the correct answer is D.

6 0
3 years ago
Read 2 more answers
Plot the inequality on the number line​
maksim [4K]

Answer:

Hope this helps!

5 0
3 years ago
The equation of a circle is (x+10)^2+(y-4)^2=100
klemol [59]
Hello,

Answer 1
Center=(-10,4)
radius=10

4 0
4 years ago
Read 2 more answers
Can you guy's please help me out I was absent and now I don't have a clue!
Elena-2011 [213]
For these problems you have to use PEMDAS so for problem 15 you would do the parentheses first, (21-3) you get 18 and then exponents, 3^2, you get 9, no multiplication but there is division so take your answers, 18 and 9 and divide them, you get 2, so the answer to 15 is 2.
6 0
3 years ago
Identify the vertex of the graph tell weather it is minimum or maximum
Contact [7]

Vertex is (-2,-3) and it's a minimum.

4 0
3 years ago
Other questions:
  • Inverse of g(x) 2x+3
    7·1 answer
  • Help please.
    7·1 answer
  • Simplify.<br><br> (-4b^3+b-1)+(6b-6)
    10·2 answers
  • What is 43.78 in world form?
    9·2 answers
  • Can someone help me answer this problem
    8·1 answer
  • I need help on these problems because I don’t really get it
    5·1 answer
  • Match the sides based on their relationship to A<br><br> PLEASE ANSWER ASAP
    15·2 answers
  • Please solve with explanation 30 points
    8·1 answer
  • Please Help Me, Y=15-X?
    7·1 answer
  • Find the probability of a couple having at least one boy when a couple has three children
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!