the product of 9 and x, decreased by the sum of 8 and the square of x?

Question

Identify the terms coefficients, and constants. Determine if the expression is quadratic and if so explain.

Answer 1

9x - 8 - x^2

-x^2 + 9x - 8

Identify the terms coefficients, and constants. Determine if the expression is quadratic and if so explain.

In Algebra a term is either a single number or variable, or numbers and variables multiplied together. Terms are separated by + or − signs.

So, terms are: -x^2, 9x, and -8

Coefficients are: -1, 9

Constants: A fixed value. In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.Example: in "x + 5 = 9", 5 and 9 are constants.

Constant: -8

It is a quadratic equation because: The standard form of a quadratic is y = ax^2 + bx + c, where a, b, and c are numbers and a cannot be 0.