Simplification 2 Variable


Tests
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Sample
Simplification 2 Variable [Test 1]
1) -3y + (3xy)(-3y - 4xy) - 3y + 4x2y2 - 3y - 2xy - 3xy + 2x2y2; can be simplified as
a) -9y - 9xy - 6x2y2 - 5xy    b) -10y - 9xy2 - 6x2y2 - 5xy    c) -10y - 9xy - 6x2y2 - 5xy    d) -9y - 9xy2 - 6x2y2 - 5xy    e) -9y + 9xy - 6x2y2 - 5xy    
2) -2y - 4xy + (-5y + 3xy)(-5y - 3xy) - 2y - 2y + 3y - y + 4x2; can be simplified as
a) -4y - 4xy + 25y2 - 9x2y2 + 4x2    b) -4y - 4xy + 24y2 - 9x2y2 + 4x2    c) -4y - 4xy + 24y2 - 9x2y2 + 3x2    d) -4y - 4xy + 24y2 + 9x2y2 + 3x2    e) -4y - 3xy + 24y2 + 9x2y2 + 3x2    
3) (-xy)(-4) + 5y + x + x2y - 5y - x2y + x2y - 2x2y
What is the coefficient for xy after simplification?
4) (y)(5xy - x) + 4xy2 + 5x2 + 4y + 4xy2 + 4y + xy2 - 5xy2; can be simplified as
a) 9xy2 - 2xy + 5x2y2 + 8y    b) 9xy2 - 2xy + 5x2 + 8y    c) 9xy2 - xy + 5x2 + 8y    d) 9xy2 - 2xy + 5x2y2 + 8y    e) 9xy2 - 2xy + 5x2y2 + 8y    
5) (x - xy)(xy) - 4xy2 - y2 - y2 - 5xy + 5y2 - 3xy - 3y2
What is the coefficient for x2y after simplification?