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Questions and Answers
Which type of equations are called linear equations in the variable x?
Which type of equations are called linear equations in the variable x?
- Equations of the form ax^2+bx+c=0
- Equations of the form bx+c=0
- Equations of the form x^2+bx+c=0
- Equations of the form ax+b=0 (correct)
What are the two operations on an equation that always result in a new equation equivalent to the original one?
What are the two operations on an equation that always result in a new equation equivalent to the original one?
- Multiplying the same expression by a nonzero real number into both sides
- Dividing the same expression by a nonzero real number from both sides
- Subtracting the same expression from both sides
- Adding the same expression to both sides (correct)
What are the operations called that are sometimes called elementary transformations?
What are the operations called that are sometimes called elementary transformations?
- T.4 and T.5
- T.1 and T.2 (correct)
- T.3 and T.4
- T.2 and T.3
Which type of equations are equivalent if they have the same solution set?
Which type of equations are equivalent if they have the same solution set?
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What can be multiplied into both sides of an equation according to T.2?
What can be multiplied into both sides of an equation according to T.2?
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