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
aleksley [76]
3 years ago
8

Subtract (5x2 3) −(2x2 4x − 12)

Mathematics
2 answers:
timurjin [86]3 years ago
6 0
Distribute invisible-1 to the 2x^2+4x-12
5x^2+3-2x^2-4x+12
group like terms
5x^2-2x^2-4x+3+12
3x^2-4x+15
Airida [17]3 years ago
3 0

Answer:

3x2 − 4x + 15

(just took the quiz)


You might be interested in
Annie is framing a photo with a length of 6 inches and a width of 4 inches. The distance from the edge of the photo to the edge
Ede4ka [16]

Answer:

Part a) The quadratic function is 4x^{2} +20x-39=0

Part b) The value of x is 1.5\ in

Part c) The photo and frame together are 7\ in wide

Step-by-step explanation:

Part a) Write a quadratic function to find the distance from the edge of the photo to the edge of the frame

Let

x----> the distance from the edge of the photo to the edge of the frame

we know that

(6+2x)(4+2x)=63\\24+12x+8x+4x^{2}=63\\ 4x^{2} +20x+24-63=0\\4x^{2} +20x-39=0

Part b) What is the value of x?

Solve the quadratic equation 4x^{2} +20x-39=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem

we have

4x^{2} +20x-39=0

so

a=4\\b=20\\c=-39

substitute in the formula

x=\frac{-20(+/-)\sqrt{20^{2}-4(4)(-39)}} {2(4)}

x=\frac{-20(+/-)\sqrt{1,024}} {8}

x=\frac{-20(+/-)32} {8}

x=\frac{-20(+)32} {8}=1.5\ in  -----> the solution

x=\frac{-20(-)32} {8}=-6.5\ in

Part c) How wide are the photo and frame together?

(4+2x)=4+2(1.5)=7\ in

5 0
3 years ago
The perimeter of a rectangle is 50 feet and its area is 154 feet. What are the dimensions of the
sasho [114]
14 and 11 are it dimensions

Hope this helps!
3 0
3 years ago
If the tax rate is 9.5%. determine how much tax you will need to pay on your order
7nadin3 [17]

Answer:

In order to calculate the sales tax of an item, we need to first multiply the pre-tax cost of the item by the sales tax percentage after it has been converted into a decimal. Once the sales tax has been calculated it needs to be added to the pre-tax value in order to find the total cost of the item.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
36. Rafael asserts that two eighths > one fourths, since 2 >1 and 8 > 4. How should
Oksana_A [137]
Türkiye cumhuriyeti ccc
7 0
3 years ago
Ujalakhan help! (x+2)(y-1) Simplify.
Gekata [30.6K]

Answer:

We can use the distributive property.

(x + 2)(y - 1)

= x(y) - x(1) + 2(y) - 2(1)

= xy - x + 2y - 2

4 0
2 years ago
Read 2 more answers
Other questions:
  • Triangle Q R S is shown with exterior angles. Line R Q extends through point D. Line Q R extends through point E. Line Q S exten
    15·2 answers
  • What is the solution 1/2x=5/6
    15·1 answer
  • Solve s = rθ for θ.<br><br> A) θ = rs <br> B) θ = r/s<br> C) θ = s/r<br> D) θ = 1/rs
    5·2 answers
  • How much buying power would $1,000,000 have 45 years from now if we assume an annual inflation of 2%?
    14·1 answer
  • I have tried every way I could think of to solve this problem and it keeps coming up wrong . 3/4 divided by -11/5
    5·2 answers
  • Plz help it’s due tomorrow
    13·1 answer
  • What is 2 2/3 divided by 2/3?
    12·1 answer
  • Evaluate f (x) = -4x + 7 when x = 2 and x = -2
    15·1 answer
  • Which of the following is a relative adverb
    6·1 answer
  • Which angles are complementary to each other?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!