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Setler [38]
3 years ago
11

X2 + 8x = 15 help me ​

Mathematics
2 answers:
dangina [55]3 years ago
5 0

Answer:1.5

Step-by-step explanation:10x=15

x=15/10

x=1.5

svlad2 [7]3 years ago
3 0

Answer:

x₁ = - 4 + √31

x₂ = - 4 - √31

Step-by-step explanation:

x² + 8x = 15

x² + 8x - 15 = 0

x = [- 8 ± √8² - 4×1×(-15)]/(2×1)

x = (-8 ± 2√31)/2

x₁ = (-8 ± 2√31)/2

x₁ = - 4 + √31

x₂ = - 4 - √31

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3 years ago
Solve the system of equations by elimination <br> 3x+4y=31<br> 2x-4y=-6
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5 0
3 years ago
Read 2 more answers
Can someone also help me with this one?
serg [7]

Answer:

120

Step-by-step explanation:

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3 years ago
The following is the recipe to make one dozen muffins: 1 cups flour; 2 cups sugar; 2 tsps. Baking powder; 1 egg; 1 cup Crisco; 1
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