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Vikki [24]
3 years ago
15

sally is y years old mike is the difference between 20 and Sally's age Joe is four years less than triple Sally's age

Mathematics
1 answer:
Vitek1552 [10]3 years ago
4 0
Can you get a dotted chart
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Answer: the above stated equation is a quadratic equation

Step-by-step explanation:

Given the following equations

y = x^2 + 5x - 3....equation 1

y-x = 2

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Let equation 1 equal equation 2

x^2 + 5x -3 = x + 2

Bringing the equation to one side and equating to zero

X^2 +5x - 3 -x -2 = 0

X2 + 5x -x -3 -2 = 0

X^2 + 4x -5

Solving the aquatic equation

(x + 5)(x -1) = 0

X + 5 = 0

X1 = -5

X- 1 = 0

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To prove:

Substitute the values for x1and x2 into the equation x^2 + 4x - 5 = 0

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Step-by-step explanation:

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