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In the following question two equations ...

In the following question two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.
A) `x^2 – 7x + 12 = 0`
B ) `y^2 – 9y + 20 = 0`

A

`X gt Y`

B

`X ge Y`

C

`X lt Y`

D

`X le Y`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equations and determine the relationship between \( X \) and \( Y \), we will follow these steps: ### Step 1: Solve the first equation \( x^2 - 7x + 12 = 0 \) 1. **Factor the quadratic equation**: We need to find two numbers that multiply to \( 12 \) (the constant term) and add up to \( -7 \) (the coefficient of \( x \)). The numbers that satisfy this condition are \( -3 \) and \( -4 \). Therefore, we can factor the equation as: \[ (x - 3)(x - 4) = 0 \] 2. **Set each factor to zero**: \[ x - 3 = 0 \quad \text{or} \quad x - 4 = 0 \] This gives us: \[ x = 3 \quad \text{or} \quad x = 4 \] ### Step 2: Solve the second equation \( y^2 - 9y + 20 = 0 \) 1. **Factor the quadratic equation**: We need to find two numbers that multiply to \( 20 \) (the constant term) and add up to \( -9 \) (the coefficient of \( y \)). The numbers that satisfy this condition are \( -4 \) and \( -5 \). Therefore, we can factor the equation as: \[ (y - 4)(y - 5) = 0 \] 2. **Set each factor to zero**: \[ y - 4 = 0 \quad \text{or} \quad y - 5 = 0 \] This gives us: \[ y = 4 \quad \text{or} \quad y = 5 \] ### Step 3: Determine the relationship between \( X \) and \( Y \) Now we have the possible values for \( X \) and \( Y \): - \( X \) can be \( 3 \) or \( 4 \) - \( Y \) can be \( 4 \) or \( 5 \) We will compare the values: - If \( X = 3 \), then \( Y \) can be \( 4 \) or \( 5 \) (so \( X < Y \)). - If \( X = 4 \), then \( Y \) can be \( 4 \) or \( 5 \) (so \( X = Y \) or \( X < Y \)). ### Conclusion The relationship between \( X \) and \( Y \) can be summarized as: - \( X \leq Y \)

To solve the equations and determine the relationship between \( X \) and \( Y \), we will follow these steps: ### Step 1: Solve the first equation \( x^2 - 7x + 12 = 0 \) 1. **Factor the quadratic equation**: We need to find two numbers that multiply to \( 12 \) (the constant term) and add up to \( -7 \) (the coefficient of \( x \)). The numbers that satisfy this condition are \( -3 \) and \( -4 \). ...
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