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sammy [17]
3 years ago
9

X2 + 9x + 2 = 0 has how many real solutions

Mathematics
2 answers:
Nonamiya [84]3 years ago
6 0

Answer:

1. it is x=-2/11

Step-by-step explanation:

mestny [16]3 years ago
6 0

Answer:

Step-by-step explanation:

hello :

x² + 9x + 2 = 0

∆ =b²- 4ac  when : a =1 and b=9 and c=2

∆ =b²- 4ac = (9)²-4(1)(2) =81-8 = 73

∆ >0 two reals solutions......

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8 0
3 years ago
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3 0
2 years ago
-1/2x+3=-4x+7
borishaifa [10]
Like a first step bc. there is a denominator this will be more usefully eliminate it so what you can make it multiplied both sides by 2 
- so will get 

-2/2x +2*3/2 = 2(-4x+7)/2

(-2x +6)/2 = 2(-4x+7)/2   common denominator the 2 so make the numerators equal and solve for x 

-2x+6=-8x+14

6x=8

hope helped 


5 0
3 years ago
I need help on this one please​
katrin2010 [14]

Answer:

B

Step-by-step explanation:

(-2,4), (0,6), and(2,8)

6 0
3 years ago
2 (-4) (-5) =<br> Whats the awnser cause my brain cant HANNDLE THIS
Ganezh [65]

Answer:

40

Step-by-step explanation:

2 x -4 x -5 = 2 x 20 = <u>40</u>

5 0
3 years ago
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