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
weqwewe [10]
2 years ago
5

X^2 + 4x – 7 = 0 Pls n thx

Mathematics
1 answer:
Ludmilka [50]2 years ago
8 0

Answer:

x = - 2 ± \sqrt{11}

Step-by-step explanation:

To solve the equation using the method of completing the square.

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

add ( half the coefficient of the x- term )² to both sides

x² + 2(2) x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt{11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11} ← exact solution

You might be interested in
Erin Thompson agreed to purchase a house for $97,900. Hoover Mortgage is willing to lend her
Solnce55 [7]
$2,697 is correct :)


$97,900-$8000=$89,900 because down payments are never included with the total mortgage loan.
8 percent for 30 years means there will be 8 percent interest that the bank charges on a 30 year loan that is on a fixed payment per month.
3 percent for closing costs or 0.03•$89,900=$2,697
8 0
2 years ago
Translate the equation into a verbal sentence.<br> 4x=8x-y
LiRa [457]

Answer:

Four times a number is equal to eight times a number minus a number.

Step-by-step explanation:

5 0
3 years ago
Hey can you please help me posted picture of question:)
castortr0y [4]
The given trinomial can be factored using the factorization method.

x² -12x + 35
= x² -7x -5x + 35
= x(x-7) - 5(x-7)
= (x-7)(x-5)

Thus, (x-7)(x-5) is the factored form of the polynomial.

So the correct answer is option B


3 0
3 years ago
Give one number that makes the inequality 3x &lt; 25 true
elena55 [62]
1 is the safest answer.
4 0
3 years ago
Read 2 more answers
What is the solution of the equation? Eliminate any extraneous solutions √3x + 28 - 8 = x
Alecsey [184]
The answer to the solution is x=43+√249/2

I hope this helps.
6 0
3 years ago
Other questions:
  • Which statement explains the lines 2x+y=4 and y=1/2x+4 are related
    10·2 answers
  • Two angles of a triangle have equal measurements. If the third angle measures 120°,what is the measure of the equal angles
    14·1 answer
  • The results of a poll show that between 75% and 83% of consumers prefer Chip A to Chip B. What is the point estimate for the per
    12·2 answers
  • Amanda has bought 30 pounds of dog food. She feeds her dog 3/5 pounds for each meal. For how many meals will the food last?
    12·2 answers
  • What is the distance between (Negative 5, 4) and (Negative 1, 4)?
    9·1 answer
  • Demarcus went out to dinner at a restaurant with his family. Their bill, including tax, totaled $32. If the family wants to leav
    5·1 answer
  • How do u find the order of operations of 8×3+70÷7-7 ​
    8·2 answers
  • A number y​ is no less than "-4"
    7·2 answers
  • A penny, a nickel, a dime, and a quarter are tossed. What is the probability of obtaining at least three tails on the losses
    15·1 answer
  • Let h(x)=-1/3x+2. Find -4h(9)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!