In which of the following expressions does the “X” term have a coefficient of 1?
x^2 +2x +7
3x^2 - x - 5
2x^2 - 3x + 1
2x^2 + x - 9
2x^2 + x - 9
To determine which expression has the "X" term with a coefficient of 1, we need to look at the coefficient in front of the "X" term in each expression.
Let's go through each expression one by one:
1) In the expression x^2 + 2x + 7, the coefficient of the "X" term is 2.
2) In the expression 3x^2 - x - 5, the coefficient of the "X" term is -1.
3) In the expression 2x^2 - 3x + 1, the coefficient of the "X" term is -3.
4) In the expression 2x^2 + x - 9, the coefficient of the "X" term is 1.
Therefore, the expression 2x^2 + x - 9 is the one where the "X" term has a coefficient of 1.
To determine which of the given expressions has a coefficient of 1 for the "x" term, let's look at the coefficient in front of "x" in each expression:
1. x^2 + 2x + 7: The coefficient of "x" is 2, not 1.
2. 3x^2 - x - 5: The coefficient of "x" is -1, not 1.
3. 2x^2 - 3x + 1: The coefficient of "x" is -3, not 1.
4. 2x^2 + x - 9: The coefficient of "x" is 1.
Therefore, the expression 2x^2 + x - 9 has the "x" term with a coefficient of 1.