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Evgesh-ka [11]
3 years ago
12

-2x2+x+8=0 use the quadratic formula to solve the equation

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
5 0
X = -1 is the answer to -2x2+x+8=0
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The polynomial 2x3 − 5x2 + 4x − 10 is split into two groups, 2x3 + 4x and −5x2 − 10. The GCFs of each group is then factored out
Ugo [173]

Answer: \\ 2 {x}^{3}  -  5 {x}^{2}  + 4x - 10 \\  = (2 {x}^{3}  + 4x) - (5 {x}^{2}  + 10) \\  = 2x( {x}^{2}  + 2) - 5( {x}^{2}  + 2) \\  = ( {x}^{2}  + 2)(2x - 5) \\ Common  \: binomial \:  factor:2x - 5

8 0
3 years ago
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Y=-2x+5<br>if x=4 what is the answer​
barxatty [35]

Answer:

y=-3

Step-by-step explanation:

y=-2x+5

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5 0
4 years ago
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Anyone? need help ASAP will mark as brain list and give a 5 star explain and show work. pls
natima [27]

A company shipped a certain amount of books to a school. The books

were shipped in large boxes that are 25 in. X 10 in. X 12 in. The books are

all 5 in. X 4 in. X 3in. How many of these books did the school receive if

there were 50 large boxes in the shipment?

the first step is figure out how many books fit in one box so here is how to calculate that!  

(5 in.) x (4 in.) x (3 in.)                                           (25 in.) x (10 in.) x (12 in.)

=983 milliliters                                               =49 liters

so in that case how many milliliters can go into 49 liters? the answer is this 49,161 so divide that by the volume of the books

20 books should fit in each box

the school got a shipment of 1000 books

I hope this helps sry it took so long big equation oh and.....

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3 0
2 years ago
3x²+5x-2=0 by any method
Salsk061 [2.6K]
3x²+5x=2

x(3x+5)=2

x=2  or 3x+5=2
           
            x=3/5  
5 0
4 years ago
Select the correct answer.<br> What is one root of this equation?<br> 2x^2-4x+9=0
12345 [234]
3.34520787 would be the answer I believe.
8 0
3 years ago
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