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
siniylev [52]
2 years ago
13

Perform the operation. (4x^2 + 6x + 7) - (-8x^2 – 2x + 6)

Mathematics
1 answer:
LenaWriter [7]2 years ago
8 0

12 {x}^{2}  + 8x + 1

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

(4 {x}^{2}  + 6x + 7) - ( - 8 {x}^{2}  - 2x + 6) \\  = 4 {x}^{2}  + 6x + 7 + 8 {x}^{2}  + 2x - 6 \\  = 4 {x}^{2}  + 8 {x}^{2}  + 6x + 2x + 7 - 6 \\  = 12 {x}^{2}  + 8x + 1

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

You might be interested in
The expression c - 0.25 can be used to find th ecost of an item on sale for 25% off. Which expression is equaivalent to c - 0.25
just olya [345]

The Answer is 0.0636 c

6 0
3 years ago
Which of the following fractions is not in simplest form?<br> 4/15<br> 7/10<br> 9/12<br> 3/4
Dominik [7]

Answer:

9/12

Step-by-step explanation:

Both 9 and 12 can be divided by 3, so it is not in simplest form.

8 0
2 years ago
Read 2 more answers
What is 31.75 to the nearest tenth
jekas [21]
the answer to that question is 31.80
7 0
2 years ago
Read 2 more answers
In a bag, there are 5 red marbles, 2 blue marbles, and 3 purple marbles. What is the probability of drawing a purple marble?
Kitty [74]

Answer:

3/10 or 30%

Step-by-step explanation:

Add all of the marbles: 5+2+3=10

Then use a fraction to represent the three purple marbles: 3/10

That porportion is your answer

7 0
1 year ago
Determine the zeroes of 10x2−5=35
OLEGan [10]

Answer:

x = +2, x = -2

Step-by-step explanation:

The equation to solve in this problem is

10x^2-5=35

The first step we do is to subtract 35 on both sides of the equation, so we get:

10x^2-5-35=0\\10x^2-40=0

Now we simplify the equation by dividing both terms by 10:

\frac{10x^2-40}{10}=0\\x^2-4=0

Now we observe that the term on the left is the difference between two squares, so it can be rewritten using the property:

a^2-b^2=(a+b)(a-b)

Where here,

a = x

b = 2

So we can rewrite the equation as:

x^2-4=0\\(x+2)(x-2)=0

And this equation is zero when either one of the two factors is zero, so the two solutions are:

x+2=0\rightarrow x=-2\\x-2=0 \rightarrow x=+2

5 0
2 years ago
Other questions:
  • I need help with internet’s I am not doing good in math and I really need help
    7·1 answer
  • Joyce paid $220 for an item at the store that was 35 percent of the original price. What was the original price?
    7·1 answer
  • Please help asap!!!
    6·1 answer
  • |x|, if x=10; .3; 0; −2.7; −9
    9·1 answer
  • 100pts: Find F(5) if F is a recursive function as defined below:
    5·2 answers
  • For g(x)= 1/5x^2+3x, find g'(1)<br> a. -1/4<br> b. 1/4<br> c. -7/4<br> d. -4/7<br> e. 7/4
    6·1 answer
  • Pls help with this question! Its due today!
    15·1 answer
  • Please help mee like pretty please
    6·2 answers
  • Which of the following inequalities is correct?
    6·1 answer
  • 1) 6 hats cost $67.50<br> What's the cost per hat?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!