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____ [38]
4 years ago
11

Y’all plz help fast

Mathematics
1 answer:
Wewaii [24]4 years ago
8 0
Can you comment the full question
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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
What is the end behavior of the graph of the polynomial function -x^5+9x^4-18x^3
LenaWriter [7]

x

3

(

−

x

+

3

)

(

x

−

6

)

I hope this works!

4 0
3 years ago
Round 703 to the nearest hundred
natulia [17]
703 rounded to the nearest hundred is 700
5 0
3 years ago
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5x (-2w-4) I need this asap
ira [324]

Hello from MrBillDoesMath!

Answer:

-10w - 20


Discussion:

5 ( -2w - 4 )   =                    

5(-2w) - 5(4) =

-10w - 20

Thank you,

MrB

4 0
3 years ago
Josefina is buying 10 pounds of salmon which costs $6.78 per pound. how much wil the salmon cost
Liono4ka [1.6K]
$6.78/pound*10pounds=$67.80
4 0
3 years ago
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