Simplification 1 Variable


Tests
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Sample
Simplification 1 Variable [Test 1]
1) -x2 + (2 + 5)(-3x) - 4x2 - 5x2 - 3x2 - 3x2 + x2 + 4x2; can be simplified as
a) 11x2 - 21x    b) -11x2 - 21x    c) -11x2 - 21x    d) 11x2 + 21x    e) 10x2 + 21x    
2) (-5 - 3)(5 + 4x) - 3x2 - 2x2 - 5 - 5 - 4 + 2x2 - 3x2; can be simplified as
a) -54 - 32x - 6x2    b) -54x2 - 32x - 6x2    c) -54x2 - 32x - 7x2    d) -54x2 - 31x - 7x2    e) -54x2 - 30x - 7x2    
3) 4 - 2x2 + 1 + 5 + (3 + x)(5 - 1) - x2 + 3x - 4x; can be simplified as
a) 22 + 3x2 + 3x    b) 22 - 3x2 + 3x    c) 21 + 3x2 + 3x    d) 21 + 3x2 - 3x    e) 21 - 3x2 - 3x    
4) 1 + (-5x)(1) - 3 - 1 - 4 - 2x + 4 - 2x
What is the coefficient for x after simplification?
5) 5 + 5x2 - x2 + (-x - 3x)(-1) + 3 + x2 + 3 + 2x2
What is the coefficient for x2 after simplification?