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Inessa [10]
3 years ago
6

(2+5x)9= combine like terms

Mathematics
1 answer:
rodikova [14]3 years ago
4 0

Answer:

18+45x

Step-by-step explanation:

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Solve 2x2 + x − 4 = 0. x2 + x + = 0
Ksenya-84 [330]

Answer:

The Quadratic Polynomial is

2 x² +x -4=0

Using the Determinant method to find the roots of this equation

x=\frac{-1\pm \sqrt{1^2-4*2*(-4)}}{2\times 2}\\\\ x=\frac{-1 \pm \sqrt{32}}{4}{\text{Using the formula}}x=\frac{-b\pm\sqrt{D}}{2a}, {\text{where}},D=b^2-4 ac

For, the Quadratic equation , ax²+ b x+c=0

(b) x²+x=0

x × (x+1)=0

x=0  ∧ x+1=0

x=0     ∧   x= -1

You can look the problem in other way

the two Quadratic polynomials are

2 x²+x-4=0, ∧ x²+x=0

x²= -x

So, 2 x²+x-4=0,

→ -2 x+x-4=0

→ -x -4=0

→x= -4

∨

x² +x² +x-4=0

x²+0-4=0→→x²+x=0

→x²=4

x=√4

x=2 ∧ x=-2

As, you will put these values into the equation, you will find that these values does not satisfy both the equations.

So, there is no solution.

You can solve these two equation graphically also.

3 0
4 years ago
Read 2 more answers
Find cardinal number of H= Sunday, dog, house, car, month
Deffense [45]

Answer:

The cardinal number of h is house.

3 0
3 years ago
Gretta made five withdrawals of $20 each from her checking account
frozen [14]

Answer:

+160

Step-by-step explanation:

Her withdraws added up is 100 which is taking away money, because withdraw means you take your money out of your checking account.

Deposits means you add more money into your account, so added up

-100 + 260 = 160

8 0
3 years ago
Write an equation of the line shown. Then use the equation to find the value of x when y=150
Kisachek [45]

Answer:

Step-by-step explanation:

x = 12

Step-by-step explanation:

The slope-intercept form formula, , can be used to write an equation for the line.

Where,

m = slope =  

b = y-intercept, which is the point at which the line intercepts the y-axis. At this point, x = 0.

Let's find the slope (m) using the coordinates of the two points given, (0, 30), (3, 60).

Let,

y-intercept of the line, b = 30

Equation for the line would be:

Using the equation, find x when y = 150.

Simply substitute the value for y in the equation to find x.

Subtract 30 from both sides

Divide both sides by 10

x = 12

5 0
3 years ago
Read 2 more answers
Can someone help answer this
eduard

Answer:

C

Step-by-step explanation:

None really

7 0
3 years ago
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