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
34kurt
3 years ago
14

Please help me need hlp

Mathematics
1 answer:
zimovet [89]3 years ago
5 0

Answer:

{ - 2x}^{2}  -  {8x}^{3}  + 6x \\  {x }^{2}  -  {8x}^{3}  + 6x

Step-by-step explanation:

  1. step one foil method
  2. step two adding the like terms

You might be interested in
Select all point that lie on the circle
Vitek1552 [10]

Answer:

jjjokiioololll.hgyuhhkopohjo

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%284%20%2B%206i%29%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="(4 + 6i) {}^{2} " alt="(4 +
34kurt

Answer:

36i^{2}+48i+16

Step-by-step explanation:

(4+6i)^{2} is essentially (4+6i)(4+6i) (you are squaring (4+6i), so multiplying it by itself), so to simplify, you would need to distribute.

A good way to go about this is using the F.O.I.L. method, multiplying the First numbers in the parentheses, then the Outers, then Inners, and finally, Lasts.

(4+6i)(4+6i) >> (4+6i)(4+6i) >> (4+6i)(4+6i) >> (4+6i)(4+6i)

((4*4)+(4*6i)+(6i*4)(6i*6i))

After doing so, you would end up with 16+24i+24i+36i^{2}, and after combining like terms, 16+48i+36i^{2}.

To write the expression in standard form, though, just order the terms from highest to lowest power!

5 0
3 years ago
Solve<br> 4(x + 3) = 6<br><br> Make x the subject
Irina-Kira [14]

Answer:

x = -3/2

Step-by-step explanation:

4(x + 3) = 6

4x + 12 = 6

4x = 6 - 12

4x = -6

x = -6/4

x = -3/2

5 0
3 years ago
Read 2 more answers
PLEASE HALP ALL MY POINTS AND BRAINIEST
amm1812

Answer:

around 120

Step-by-step explanation:

3 0
3 years ago
A company estimates that it will sell ????(x) units of a product after spending x thousand dollars on advertising, as given by ?
zepelin [54]

Answer:

(11\frac{1}{3},20)

Step-by-step explanation:

If the Number of Sales of x units, N(x) is defined by the function:

N(x)=-5x^3+235x^2-3400x+20000,10\leq x\leq 40

N'(x)=-15x^2+470x-3400\\When -15x^2+470x-3400=0\\x=20, x=11\frac{1}{3}

Next, we text the critical points and the end points of the interval to see where the derivative is increasing.

N'(10)=-200\\N'(11\frac{1}{3})=0\\N'(19)=115\\N'(20)=0\\N'(40)=-8600

Thus, the rate of change of sales N'(x) is increasing in the interval (11\frac{1}{3},20) on 10≤x≤40.

7 0
3 years ago
Other questions:
  • 1. Libby is calculating her net worth. Her
    14·1 answer
  • Find the least whole number that can make this statement true. _ ÷ 9&lt;700
    10·1 answer
  • 5p/7 - 18 = - 43 help me please!
    7·1 answer
  • Solve and find the answer<br> -3(2x - 5)
    5·1 answer
  • Devbra swims 80 laps each practice and Mike swims 75 laps each practice. They each practice 4 days a week. How many laps do they
    8·1 answer
  • Alan is loading a pallet with boxes that each weighs 55 pounds. The pallet can safely support no more than 1595 pounds. How many
    15·1 answer
  • Is 2/5 the same as 0.4?
    14·2 answers
  • A two-factor study with 3 levels of factor A and 3 levels of factor B uses a separate sample of 10 participants in each treatmen
    11·1 answer
  • Evaluate h(x) = -2x + 9 when x = -2,0, and 5.
    6·1 answer
  • A shopkeeper buys an article from a wholesaler for Rs 20000 and sells it to a consumer at 10 % profit. If the Rate of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!