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
xxMikexx [17]
2 years ago
5

The solutions to a certain quadratic equation are x= -4 and X = 3. Write the equation in standard form below.

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
8 0

Answer:

x² + x - 12 = 0

Step-by-step explanation:

If x = -4 and x = 3 are solutions to a quadratic equation, then

(x + 4)(x - 3) = 0

Expand the brackets:  x² - 3x + 4x - 12 = 0

Combine like terms:  x² + x - 12 = 0

You might be interested in
Find the total cost of a $32 Uber ride with a 15% tip.
jasenka [17]

Answer:

$36.8

Step-by-step explanation:

i just calculated it!

32*15% = 4.8

32+4.8= 36.8

7 0
3 years ago
One leg of a right triangle is 7 inches longer than the smaller leg and the hypotenuse is 8 inches longer than the smaller leg.
Makovka662 [10]
Smaller leg = x
longer leg = y
hypotenuse = z

y=x+7
z=x+8

due to
{z}^{2}  =  {x}^{2}  +  {y}^{2}  \\ (x + 8) ^{2}  =  {x}^{2}  + (x + 7) ^{2}  \\  {x}^{2}  + 16x + 64 =  {x}^{2}  +  {x}^{2}  + 14x + 49 \\  {x}^{2}  + 16x + 64 = 2 {x}^{2}  + 14x + 49 \\  {x}^{2}  - 2 {x}^{2}  + 16x - 14x + 64 - 49 = 0 \\  -  {x}^{2}  + 2x + 15 = 0 \\  {x}^{2}  - 2x - 15 = 0 \:  \: (multiplied \: by \:  - 1) \\ (x - 5)(x + 3) = 0 \\ then \:  \: x = 5 \:  \: or \:  \: x =  - 3
but x cannot be -3
so smaller leg is 5 inches

then longer leg = 5+7 = 12 inches
and hypotenuse = 5+8 = 13 inches
3 0
3 years ago
The PTA sells school supply packs each year. If 60% of the 400 students purchase from the PTA, then how many school supply packs
Bess [88]

:} Im sorry i dont know

...........................................................

8 0
2 years ago
Imagine you are four years old. A rich aunt wants to provide for your future. She has
Vedmedyk [2.9K]
Easily option #1. Time is money in this world. first option benefits you short term and long term. There would be no reason as why you’d want option #2
3 0
3 years ago
Determine the equation of the following lines
Phantasy [73]
Y=3x-1

y=4/3x+2

y=2/5x+5
7 0
3 years ago
Read 2 more answers
Other questions:
  • What percent is 60 is 15
    9·2 answers
  • Find the missing dimension of the solid. Round your answer to the nearest 10th
    13·1 answer
  • What will be the new coordinates of (3, -1) if it is reflected across the y-axis
    13·1 answer
  • Hector needs to buy a window shade in his house. He measured the width of the window as 37 inches. The actual measurement is 40
    12·1 answer
  • Help me please, ps u don't have to answers all of them
    11·1 answer
  • You are purchasing four items and want to calculate the tax. The items cost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%.
    12·1 answer
  • Colton wants to ride his bicycle 53.2 miles this week. He has already ridden 10 miles.
    11·1 answer
  • Solve the equation.<br><br> 3(x−9)=30
    8·1 answer
  • What is the solution to the system x + y = 5 and 3x - y = 3?
    14·1 answer
  • 2x-y=8<br>x+2y=4<br><br>for the system of equation above, what is the value of x+y?​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!