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Veronika [31]
3 years ago
10

Find value of x In x^2+2x

Mathematics
1 answer:
lara [203]3 years ago
6 0

Answer:

See explanation

Step-by-step explanation:

Assuming we want to solve for x in:

{x}^{2}  + 2x = 0

Then we factor to get:

x(x + 2) = 0

Apply the zero product principle to get:

x = 0 \: or \: x + 2 = 0

x = 0 \: or \: x =  - 2

The question is not all that clear, so I assume you are solving for x in the completed quadratic equation.

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Drag each label to the correct location on the table. Each label can be used more than once, but not all labels will be used.Sim
Aleonysh [2.5K]

Okay, here we have this:

Let's solve the table polynomial by polynomial:

Polynomial 1:

We will first find its simplified form:

\begin{gathered} (3x-\frac{1}{4})(4x+8) \\ =3x\cdot\: 4x+3x\cdot\: 8+\mleft(-\frac{1}{4}\mright)\cdot\: 4x+\mleft(-\frac{1}{4}\mright)\cdot\: 8 \\ =12x^2+24x-x-2 \\ =12x^2+23x-2 \end{gathered}

Name by degree of the polynomial: quadratic.

Polynomial 2:

Let's simplify it:

\begin{gathered} \mleft(5x^2+7x\mright)-\frac{1}{2}\mleft(10x^2-4\mright) \\ =5x^2+7x-5x^2+2 \\ =7x+2 \end{gathered}

Name by number of terms: Binomial

Polynomial 3:

Name by degree of the polynomial: constant

Name by number of terms: Monomial

3 0
2 years ago
Evaluate the expression.<br><br> 9! - 4!(5!)
Luda [366]

Answer:

360,000

Step-by-step explanation:

The exclamation point is factorial:

9! = 9×8×7×6×5×4×3×2×1 = 362880

5! = 5×4×3×2×1 = 120

4! = 4×3×2×1 = 24

362880 - 120× 24 = 360000

3 0
3 years ago
hali invested money into an account that is guaranteed to grow$28 each year. she graphs a line that represents the growth of the
tankabanditka [31]
If we take the graph with x as number of years and y as amount of dollars in it as mentioned in the equation;
gradient of the graph/ slope (m) = Change in y / change in x 
so if we take a certain portion of the graph 
x is the number of years, since we know the growth for one year,
lets take change in x as 1 year
y is amount of dollars, the change in amount of dollars for one year is 28
therefore change in y is 28
m(slope) = 28(change in y) / 1 (change in x)
              = 28
4 0
4 years ago
Emily measures 3 pieces of string with the first piece measures 642 cm the second piece measures 124 cm and the third piece is 1
NeX [460]

Answer: the total length of the string is 9 meters.

Step-by-step explanation:

The total number of strings that Emily measured is 3.

The length of the first piece of string measures 642 cm.

The length of the second piece of string measures 124 cm.

The length of the third piece of string measures 134 cm.

Therefore, the total length of the 3 pieces of string would be

642 + 124 + 134 = 900 cm.

100 cm = 1 m,

Converting 900 centimeters to meters, it becomes

900/1100 = 9 meters

3 0
3 years ago
The perimeter of a triangle is 110 inches. The ratio of the side measures are 6:7:9. Find the measure of each side.
erastova [34]

The ratio of the side measures are 6:7:9.

Let's assume length of three sides of the triangle is 6x, 7x and 9x.

Given,perimeter of a triangle is 110 inches.. Perimeter is the sum of all three sides of the triangle. So, we can set up an equation as follows:

6x+7x+9x= 110

22x =110

\frac{22x}{22} =\frac{110}{22} Dividing each sides by 22.

x=5.

Now we can plug in x=5 in all the expressions of sides.

So, 6x=6(5)=30,

7x=7(5)=35

9x=9(5)=45.

So, the sides of the triangle are 30 inches, 35 inches and 45 inches.

4 0
4 years ago
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