What is the missing coefficient x 2 4x -2x x 2 ______ x
12
To find the missing coefficient after x^2 - 4x - 2x + x^2 = ______ x, we need to add up all the coefficients of the x terms on the left side of the equation.
The equation can be rearranged as:
x^2 + x^2 - 4x - 2x = ______ x
Combining the like terms:
2x^2 - 6x = ______ x
The missing coefficient, which should be placed in the blank, is -6.
To find the missing coefficient in the expression x^2 + 4x - 2x + x^2, we need to simplify the expression first.
Combining like terms, the expression becomes:
x^2 - 2x + x^2
Next, we can add the coefficients of the similar terms. The coefficient of x^2 is 1 (from the first x^2 term) + 1 (from the second x^2 term), which gives us 2.
The coefficient of -2x remains unchanged.
Putting it together, the simplified expression is:
2x^2 - 2x
Therefore, the missing coefficient is 2.