To prove that the two algebraic expressions are equivalent, we can simplify each expression and compare the results.
Expression 1: \( x - 5x + 3 \)
- Combine like terms: \[ x - 5x = -4x \] So, \[ -4x + 3 \]
Expression 2: \( 2x^2 - x^2 - 2x - 20 + 9 \)
- Start by combining the \( x^2 \) terms: \[ 2x^2 - x^2 = x^2 \]
- Now, simplify the expression: \[ x^2 - 2x - 20 + 9 = x^2 - 2x - 11 \]
Comparison:
- Expression 1: \( -4x + 3 \)
- Expression 2: \( x^2 - 2x - 11 \)
Since neither expressions simplify to a common form, they are not equivalent.
In conclusion: Expression 1 yields a linear expression while Expression 2 yields a quadratic expression, indicating they are algebraically distinct.