Some steps to rewrite the expression x3 − 9x + x2 − 9 as a product of three factors are shown below:
step 1: x^3 − 9x + x^2 − 9
step 2: x^3 + x^2 − 9x − 9
step 3: x^2(x + 1) − 9(x + 1)
which of the following best shows the next two steps to rewrite the expression? (4 points)
select one:
a. step 4: (x^2 + 9)(x + 1); step 5: (x + 3)(x + 3)(x + 1)
b. step 4: (x^2 − 9)(x + 1); step 5: (x + 3)(x + 3)(x + 1)
c. step 4: (x^2 + 9)(x + 1); step 5: (x − 3)(x + 3)(x + 1)
d. step 4: (x^2 − 9)(x + 1); step 5: (x − 3)(x + 3)(x + 1)

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true