\( ( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) = \square + \square = \square + \square = \square = \square \)
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Bonus Knowledge
First, let's simplify the expression step by step. Start by distributing the negative sign through the second polynomial: \[ ( x^2 - 3x + 5) + (4x^2 - 8x - 9) \] Now, combine like terms: - For \( x^2 \): \( x^2 + 4x^2 = 5x^2 \) - For \( x \): \( -3x + (-8x) = -11x \) - For constants: \( 5 + (-9) = -4 \) Bringing it all together, we get: \[ 5x^2 - 11x - 4 \] So, we can fill in the blanks as follows: \( ( x ^ { 2 } - 3 x + 5 ) - ( - 4 x ^ { 2 } + 8 x + 9 ) = 5 x ^ { 2 } + ( - 11 x ) + ( - 4 ) = 5 x ^ { 2 } + (-11 x) + (-4) = 5 x ^ { 2 } - 11 x - 4 = 0 \)
