Question

Without actually performing the operations, determine mentally the coefficient of the x²-term in the simplified form of the following expression.
(-5²+3x-4) - (-2x²+x-3) + (-9x²+2x-5).

The coefficient of the x²-term is___.
please i really need help with this one i'm stuck.

Answer 1

Answer:

-7

Step-by-step explanation:

Because there is no multiplication, it is just the x^2 terms. There is a -(-2x^2) and a -9x^2, so it is 2x^2 and -9x^2 or -7x^2, so the coefficient is -7.

Answer 2

The coefficient of the x²-term is -7.

$(-5²+3x-4) - (-2x²+x-3) + (-9x²+2x-5). = -7x^{2} +4x-31$

So the coefficient is -7.

What are math coefficients?

The factor is the number multiplied by the variable. 2x + 6x + 14. 2x, 6x, and 14 are terms because they are summed. 2 and x; 6 and x are factors because they are multiplied together. 2 in 2x and 6 in 6x are coefficients because the variables are multiplied. You can circle or underline to find the

x-factor. Then take everything except x, that is, 5y. Therefore, the coefficient of x in term 5xy is 5y. Similarly, the coefficient of y for the term 5xy is equal to 5x.

Learn more about coefficient here: https://brainly.com/question/4219149

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