To find the quotient of \( 20x^3y^3 + 20x^2y^2 \) divided by \( -5xy \), we start by simplifying the expression.
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Factor the numerator:
The expression \( 20x^3y^3 + 20x^2y^2 \) can be factored: \[ 20x^3y^3 + 20x^2y^2 = 20x^2y^2(xy + 1) \] This is done by factoring out the common term \( 20x^2y^2 \).
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Set up the division:
Now, we need to divide this factored form by \( -5xy \): \[ \frac{20x^2y^2(xy + 1)}{-5xy} \]
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Simplify the fraction:
We can simplify the coefficients: \[ \frac{20}{-5} = -4 \] The variables also simplify:
- The \( x^2 \) in the numerator and \( x \) in the denominator gives us \( x^{2-1} = x^{1} \) or just \( x \).
- The \( y^2 \) in the numerator and \( y \) in the denominator gives us \( y^{2-1} = y^{1} \) or just \( y \).
Thus, the expression becomes: \[ -4xy(xy + 1) \]
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Final expression:
The final simplified quotient is: \[ -4x(xy + 1)y = -4xy(xy + 1) \]
So, the quotient of \( 20x^3y^3 + 20x^2y^2 \) divided by \( -5xy \) is:
\[ \boxed{-4xy(xy + 1)} \]