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konstantin123 [22]
2 years ago
12

What are the solutions to the equation? p2−12p=13

Mathematics
2 answers:
lys-0071 [83]2 years ago
6 0
P² - 12 p - 13 = 0 

Δ = ( -12)² - 4 ( 1 * - 13) 
Δ = 144 + 52
Δ = 196 = 14²

x₁ = (- ( -12) + 14 ) / 2 = 26/2 = 13 
x₂ = ( - ( -12) - 14) /2 = - 2 /2 = - 1 

S = 13
miss Akunina [59]2 years ago
3 0

Answer:

The solutions of the given equations are -1 and 13.

Step-by-step explanation:

The given equation is

p^2-12p=13

Subtract 13 from both the sides.

p^2-12p-13=0

Middle term can be written as -13p+p,

p^2-13p+p-13=0

p(p-13)+1(p-13)=0

(p+1)(p-13)=0

Using zero product property, equal each factor equal to 0.

p+1=0\Rightarrow p=-1

p-13=0\Rightarrow p=13

Therefore the solutions of the given equations are -1 and 13.

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Step-by-step explanation:

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If f(1) = 160 and f(n+ 1) = -2f(n), what is f(4)?
sertanlavr [38]
F(1) = 160 is given to us. We'll use it to find f(2)
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f(2) = -320

Now use f(2) to find f(3)
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f(3) = 640

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