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
Marizza181 [45]
2 years ago
14

Expand & simplify (3x-4)^2 - (x+1)(x-1) Please anyone? I'm really bad at maths-

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0
The answer would be 8x^2-24x+17
You might be interested in
Please help me with this. Use the combination method of substitution to solve. Please show and explain work. Thanks.
Artemon [7]

Answer:

x = 25.35 (or 2129/84) and y = 4334.04 (or 121353/28)

Step-by-step explanation:

The given equations are set up and ready to go with substitution. Simply just plug in the first equation to the second equation as both are equal to y.

Step 1: Replace y in <em>y = 87x + 2129 </em>with <em>171x</em>

171x = 87x + 2129

Step 2: Subtract 87 x on both sides

84x = 2129

Step 3: Divide both sides by 84 to get x

x = 2129/84 or 25.35 (rounded)

To get y, simply plug in x into one of the 2 original equations. In this case, I will use the first equation:

y = 171 (25.35)

y = 121353/28 or 4334.04 (rounded)

You can check your work by plugging both solutions into the calculator and see if they equal each other. The values for these answers are solely based on the equations, so if you write the <em>equations </em>wrong themselves, then that means you have the values wrong as well.

6 0
3 years ago
Need help with both of these please!! ASAP
Alik [6]

x = 1

Answer:

m\angle XVW = 100\degree

Step-by-step explanation:

In the first figure, FP is the bisector of \angle DFE

\therefore m\angle 1 = m\angle 2\\\therefore 44x + 1 = 46x - 1\\\therefore 1 + 1 = 46x - 44x\\\therefore 2 = 2x\\\therefore \frac{2}{2} = x \\\huge \red {\boxed {\therefore x = 1}}

In the second figure, VP is the bisector of \angle XVW

\therefore m\angle 1 = m\angle 2\\\therefore 12x + 2 = 11x +6\\\therefore 12x - 11x = 6 - 2\\\therefore x  = 4\\\because m\angle XVW = m\angle1 + m\angle 2\\\therefore m\angle XVW = 12x + 2 + 11x +6\\\therefore m\angle XVW = 23x + 8\\\therefore m\angle XVW = 23\times 4+ 8\\\therefore m\angle XVW = 92+ 8\\\huge \purple {\boxed {\therefore m\angle XVW = 100\degree}} \\

8 0
3 years ago
I’m stuck... any one able to help?<br> X^4 + 5x^3 + 3x/x
Leni [432]

Answer:

x^3+5x^2+3x

Step-by-step explanation:

1) divide each term in the numerator by the term in denominator:

(remember when dividing subtract the smaller exponent from larger exponent

for example: \frac{x^a}{x^b} say a is the larger exponent, do x^a^-^b

x^4/x=x^3

5x^3/x=5x^2

3x^2/x=3x

so

x^3+5x^2+3x

hope this helps!

6 0
3 years ago
Read 2 more answers
Classify a triangle whose side lengths are 8, 16, and 18
icang [17]

Answer:

scalene

Step-by-step explanation:

When all sides aren't equal.

7 0
3 years ago
Which pyramid has a greater volume and how much greater is its volume? ​
expeople1 [14]

Answer:

number 2

Step-by-step explanation:

3*7*6=126

4*3*10=120

126-120=6

6 0
3 years ago
Other questions:
  • Brainliest + [20] Points!!!! Explain!
    13·1 answer
  • The exact answer and the estimated answer will always be the same. true or false
    7·2 answers
  • The US Census Bureau reported the US population to be approximately 308,000,000 in 2010. It also reported that 6.5% of the popul
    11·1 answer
  • What is y= -4 7x -7y =-21
    10·1 answer
  • Step by step explanation
    8·1 answer
  • Amina sold 1/3 of her goats to a butcher and gave 1/6 of the remaining goats to her children. If she was left with 90 goats how
    11·1 answer
  • Jeff wanted to buy TV priced at $700. There are 20% OFF sale going on during President's week. How much would Jeff pay if he buy
    12·1 answer
  • What is the slope-intercept form of m= -4
    14·2 answers
  • Kourtney is a salesman. She earns $5 plus 4% commission of all sells. She sold $12480 over 28 hours how much money will she earn
    9·1 answer
  • Check whether <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20" id="TexFormula1" title=" \frac{4}{5} " alt=" \f
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!