Question

one number is 18 more than another. their product is -81.

step 1 of 2: set up an equation to solve the given word problem. let \\(x\\) be the smaller number.

answer
\\(x(x + 18) = -81\\)
\\(x(18x) = -81\\)
\\(x(x - 18) = -81\\)
\\(x + x + 18 = -81\\)

Explanation:

Define the variables

Using the Integer Word Problems knowledge point

$$
LATEXBLOCK0
$$

Set up the equation

Using the Quadratic Word Problems knowledge point

$$
LATEXBLOCK1
$$

Answer:

• (A) \(x(x + 18) = -81\) (Correct answer)
• (B) \(x(18x) = -81\)
• (C) \(x(x - 18) = -81\)
• (D) \(x + x + 18 = -81\)