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mylen [45]
4 years ago
15

BRAINLIESTTTT!!!!

Mathematics
1 answer:
Tresset [83]4 years ago
8 0
We have that
x²<span> − 2x − 3 = 0

Step 1
</span>isolate the variable terms 
<span>x² - 2x = 3 

</span>Step 2
complete the square 
<span>x² - 2x + 1² = 3 + 1² </span>
<span>(x-1)² = 4 
</span>
the answer is the option (x-1)² = 4 
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Please help
Gemiola [76]

Answer:

<u>x=-1.5</u>

Step-by-step explanation:

To solve for x, you need to rearrange so the x is on one side of the "=" by itself.

So To do that, first you need to subtract 1/4 on both sides of the "=". This leaves you with 1/2+x=-3/4-1/4. You can simplify the -3/4-1/4 to -1 (-4/4). So, you now have 1/2+x=-1.

The next step is to subtract 1/2 on both sides of the "=". This leaves you with x=-1-1/2. Again, you can simplify the -1-1/2 to -3/2 which can be written as -1.5. So, you now have x=-1.5, which is the final answer.

The question may ask you to write your answer in the form of a fraction, in which case your answer x=-3/2. If the questions wants it written as a mixed number, your answer would be -1 1/2.

<em>I have attached a photograph of this method written out using the funnel technique. </em>

8 0
3 years ago
PLS HELP WILL GIVE BRAILIEST!!!!!!! I NEED HELP SO BAD​
stiv31 [10]
5x10x2= 100 hope this helps
6 0
3 years ago
There are 560 third- and fourth-grade students in King Elementary School. If there are 80 more third-graders than fourth-graders
Marianna [84]

Answer:

There are 200 4th grades and 360 third graders

Step-by-step explanation:

560/2=280-80=200 280+80=360

8 0
3 years ago
Help me it is for a grade
Leya [2.2K]
Its 32 snjsshhshshhdysyyehshshshhee
6 0
3 years ago
The sum of two numbers is 30. Their product is 176. What are the two numbers.
yulyashka [42]

Answer:

( x ,y ) = ( 8 , 22 )

( x , y ) = ( 22 , 8 )

Step-by-step explanation:

Let 1st no. be x and second no. be y

<em>Given</em><em> </em><em>:</em><em>-</em><em> </em> sum of the nos. is 30

x + y = 30 ... ( i )

also, their product is 176

xy = 176 ... ( ii )

putting value of x from ( i ) in ( ii )

( 30 - y )y = 176

30y - y² = 176

y² - 30y + 176 = 0

y² - 22y - 8y + 176 = 0

y ( y - 22 ) - 8 ( y - 22 ) = 0

( y - 22 ) ( y - 8 ) = 0

• y - 22 = 0

y = 22

also,

• y - 8 = 0

y = 8

So, for y = 22 , x = 30 - y = 8

for ,y = 8 , x = 22

5 0
3 years ago
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