If | x|^2-b | x | + 15 = 0 and x = 3 is one solution for x, which of the following could not be a value of b - x?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next