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
DiKsa [7]
3 years ago
15

Descompuneti in factori. x^2+4x-5=?

Mathematics
1 answer:
Lapatulllka [165]3 years ago
3 0
<span>Assume that,
   x^2+4x-5 = 0 .......(1)
       Then, x^2+4x-5 = 0 x^2+5x-1x-5 =0
   x(x+5)-1(x+5) = 0
    (x+5) (x-1) = 0
       We get x=-5 and x=1
       Sub x=-5 in equ (1)
   (-5)^2+4(5)-5 = 0
     -25+20-5 = 0
    -25+25= 0
    0 = 0
       Sub x=1 in equ (1) (1)^2+4(1)-5 = 0
    1+4-5 = 0 5-5 = 0
     0 = 0
       Therefore x value is -5 and 1</span>
You might be interested in
I’m pretty sure I have the right answer but if you answer I will give brainiest
kumpel [21]

Answer:

your answer would actually be B

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Please help me I really need help
Murljashka [212]

Answer:

x  = 77 degrees

Step-by-step explanation:

angle x  =  (76 + 78)/2 =   154/2 = 77 degrees

Use the Chord angle theorems

3 0
3 years ago
You have just arrived at summer camp. And your cabin, the counselor has each camper perform the super secret handshake with ever
PSYCHO15rus [73]
Just try to follow my description. When two persons are in the cabin, there is only 1 handshake. When a third person comes, he will have to handshake the two people who came before him. So, there will be 2 handshakes. When a fourth person comes, he would make 3 handshakes with the 3 people who came before him. When the fifth person comes, he would make 4 handshakes with the 4 people who came before him. So, you see there is a pattern. The number of handshakes is 1 less than the total number of people inside the cabin. So, if there are 14 people in the cabin, the last person to come in would have to make 13 handshakes with the 13 people who came in first. Obtaining the sum of all the handshakes starting from the 2 handshakes initially to the 13 handshakes, the sum would be

Total handshakes = 2+3+4+5+6+7+8+9+10+11+12+13
Total handshakes = 90

Therefore, there will be a total of 90 handshakes made within the cabin of 14 people.
8 0
3 years ago
*shown in picture* I’ve been doing his for 20 minuets now and I can’t understand
Leokris [45]
Original is the whole = 5/5
After reduction is 2/5
2/5 =0.4 = 40%

Draw a rectangle.
Divide it in 5 parts
Shade 2 parts.
This is the new dimension 2/5 or 40%
6 0
3 years ago
Simplify 2(3k+4y+7)-3y+8+3(2y-k-3)​
SIZIF [17.4K]
4/5=87+2(55:10)-33 so that will be your answer if you simplify it
4 0
3 years ago
Other questions:
  • How many times greater is 8×10 to the 4 power than 4×10 to the -5 power
    6·2 answers
  • Trees are planted along a road it is to kilometers 50 m long 11 trees are planted at an equal distance apart along the road what
    10·1 answer
  • A set of data with a mean of 45 and a standard deviation of 8.3 is normally distributed. find the value that is +3 standard devi
    12·2 answers
  • Can someone help please show steps
    14·1 answer
  • A square is inscribed in a circle that has a radius of 2 cm. What is the length of one side of the square?
    12·1 answer
  • Mona stopped at a gas station where the price per gallon was $2.80. She spent $14 to fill up her car. What equation would repres
    11·1 answer
  • A $250 gaming system is discounted by 25%. It was then discounted another 10% because the box was opened by a customer. After bo
    7·1 answer
  • Help please !!!! This is really hard
    7·1 answer
  • 10⁴ metres at a speed of 2.5 km/h.
    11·1 answer
  • Sarah had a balance of $162 in her bank account at the start of the week. She withdrew $63.50 on Monday, $23.25 on Wednesday, an
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!