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In each question two equations numbered ...

In each question two equations numbered I and II are given . you have to solve both the equations and mark the appropriate option
I `10x^2+29x+18=0`
II `10y^2+11y+3=0`

A

`xley`

B

`xgey`

C

`xlty`

D

The relation between x and y cannot be established.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given equations step by step, we will first solve each equation separately and then compare the values of \( x \) and \( y \). ### Step 1: Solve Equation I The first equation is: \[ 10x^2 + 29x + 18 = 0 \] To solve this quadratic equation, we will use the factorization method. We need to find two numbers that multiply to \( 10 \times 18 = 180 \) and add up to \( 29 \). The factors of \( 180 \) that add up to \( 29 \) are \( 20 \) and \( 9 \). We can rewrite the equation as: \[ 10x^2 + 20x + 9x + 18 = 0 \] Now, we can group the terms: \[ (10x^2 + 20x) + (9x + 18) = 0 \] Factoring out the common terms: \[ 10x(x + 2) + 9(x + 2) = 0 \] Now, factor out \( (x + 2) \): \[ (10x + 9)(x + 2) = 0 \] Setting each factor to zero gives us: 1. \( 10x + 9 = 0 \) → \( x = -\frac{9}{10} = -0.9 \) 2. \( x + 2 = 0 \) → \( x = -2 \) So, the values of \( x \) are \( -0.9 \) and \( -2 \). ### Step 2: Solve Equation II The second equation is: \[ 10y^2 + 11y + 3 = 0 \] Again, we will use the factorization method. We need to find two numbers that multiply to \( 10 \times 3 = 30 \) and add up to \( 11 \). The factors of \( 30 \) that add up to \( 11 \) are \( 5 \) and \( 6 \). We can rewrite the equation as: \[ 10y^2 + 5y + 6y + 3 = 0 \] Now, we can group the terms: \[ (10y^2 + 5y) + (6y + 3) = 0 \] Factoring out the common terms: \[ 5y(2y + 1) + 3(2y + 1) = 0 \] Now, factor out \( (2y + 1) \): \[ (5y + 3)(2y + 1) = 0 \] Setting each factor to zero gives us: 1. \( 5y + 3 = 0 \) → \( y = -\frac{3}{5} = -0.6 \) 2. \( 2y + 1 = 0 \) → \( y = -\frac{1}{2} = -0.5 \) So, the values of \( y \) are \( -0.6 \) and \( -0.5 \). ### Step 3: Compare Values of \( x \) and \( y \) Now we have the values: - For \( x \): \( -0.9 \) and \( -2 \) - For \( y \): \( -0.6 \) and \( -0.5 \) We will compare these values: 1. Comparing \( -0.9 \) and \( -0.6 \): \( -0.9 < -0.6 \) (so \( x < y \)) 2. Comparing \( -2 \) and \( -0.6 \): \( -2 < -0.6 \) (so \( x < y \)) 3. Comparing \( -0.9 \) and \( -0.5 \): \( -0.9 < -0.5 \) (so \( x < y \)) 4. Comparing \( -2 \) and \( -0.5 \): \( -2 < -0.5 \) (so \( x < y \)) In all cases, we find that \( x < y \). ### Conclusion The relationship between \( x \) and \( y \) is: \[ x < y \]
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