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Flauer [41]
3 years ago
10

PLEASE HELP ASAP!!!!

Mathematics
1 answer:
yanalaym [24]3 years ago
8 0

Answer:

a = -4

b = 3

c = 6

Step-by-step explanation:

x^2 + 8x = 38

We take the coefficient of the x term

Divide by 2 and then square it

8/2 =4

4^2 = 16

Add 16 to both sides

x^2 +8x + 16 = 38 + 16

x^2 +8x +16 = 54

Take b/2 and use it in the the (x+b/2)^2

(x+4)^2 = 54

Take the square root of each side

sqrt((x+4)^2) = ± sqrt(54)

x+4 =  ± sqrt(54)

Subtract 4 from each side

x+4-4 = -4  ± sqrt(54)

x = -4  ± sqrt(54)

Simplify the square root

x = -4  ± sqrt(9*6)

x = -4 ± sqrt(9) sqrt(6)

x = -4 ± 3 sqrt(6)

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3 years ago
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Step-by-step explanation:

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3(t+5) = 9

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<em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em>

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3 years ago
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We need to use the formula for simple interest which is
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