Free Practice Question
PS · Problem Solving
605-655
Algebra
For any numbers a and b, a#b=a + b - ab. If a#b=0, which of the following CANNOT be a value of b?
Answer Choices
Correct answer marked belowA
2
1
Correct
C
0
D
-1
E
-3/2
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Explanation
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Sign in to commentWhat this question tests
What it tests
Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.
Common trap
Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.
Details
Difficulty
605-655
Type
PS
Category