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
Svetllana [295]
2 years ago
8

Solve for x

}^{2} = 7x + 2" alt="4 {x}^{2} = 7x + 2" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Alina [70]2 years ago
7 0

\bf 4x^2=7x+2\implies 4x^2-7x-2=0\implies (4x+1)(x-2)=0 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ 4x\cdot x=\boxed{4x^2}~\hfill (1)(-2)=\boxed{-2}\hfill (4x\cdot -2)+(1\cdot x)=\boxed{-7x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} 4x+1=0\implies 4x=-1\implies &x=-\cfrac{1}{4}\\[1em] x-2=0\implies &x=2 \end{cases}

You might be interested in
Find x pleaseeeeeeeeeee
Elena L [17]

Answer:

x is 10.3

Step-by-step explanation:

7 0
2 years ago
Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t
Helga [31]
I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.
6 0
3 years ago
Read 2 more answers
Help me plzzz<br>i need help<br><br>​
mina [271]

Answer: 5/6 ÷ 5/12 = 5/6 x [12]/[5] = [60]/30 =2

Step-by-step explanation:

The key to this is knowing that when you divide anything by a fraction, it is the same as multiplying by the reciprocal of the fraction, or the flipped version. In this case, we are given 5/6 divided by 5/12, which equals 5/6 x12/5. Then you can so normal fraction multiplication to get 60/30, which is 2.

7 0
3 years ago
HELPP REAL ANSWERS ONLY, NO LINKS!!!!!!!!! Provide explanation for brainliest optional though. HURRY!!!!!!!
Darina [25.2K]

Answer:

25

Step-by-step explanation:

Okay we know the length is 5 inches if this is a square then the width is 5 inches as well. This is because 5 x 5 = 25

3 0
3 years ago
Read 2 more answers
A bottle of soft drink is two thirds full. Jack drinks one quarter of the remaining soft drink. How full is the bottle now
marusya05 [52]

We know that the bottle of soft drink has a remaining volume which is 2 / 3 of the original.

Since Jack drank 1 / 4 of the remaining volume, hence only 3 / 4 now finally remains, the total is:

 

(2 / 3) * (3 / 4) = 6 / 12 = 1 / 2

 

<span>Hence the bottle is now one half full</span>

8 0
3 years ago
Read 2 more answers
Other questions:
  • Ivan can type 54 words in 3 minutes. At this rate, how many words can he type in 10 minutes?
    5·2 answers
  • A baseball coach needs to choose 99 players to be in the batting lineup for the next game. There are 44 freshmen, 44 sophomores,
    8·1 answer
  • What is the sum of this arithmetic series?
    6·2 answers
  • WILL GIVE BRAINLIEST!!!!!!!
    5·1 answer
  • How to do multi step equations
    7·1 answer
  • If (2x + 4) - (x + 3) = 15, then x =
    7·1 answer
  • ILL MARK U BRAINLIEST
    10·2 answers
  • HELP ASAP!!
    8·2 answers
  • 3. fifty - eight percent of sri lankan children (ages 3-5) are trained to read to everyday by family members. suppose 5 children
    14·1 answer
  • (-13xy+2y)+(2x-5xy-15y)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!