Idon't know who to get the answer for this problem 3x + 7 = -x -1

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Question 3 (essay worth 10 points) (03.06 mc) part a: max rented a motorbike at $465 for 5 days. if he rents the same motorbike for a week, he has to pay a total rent of $625. write an equation in the standard form to represent the total rent (y) that max has to pay for renting the motorbike for x days. (4 points) part b: write the equation obtained in part a using function notation. (2 points) part c: describe the steps to graph the equation obtained above on the coordinate axes. mention the labels on the axes and the intervals. (4 points)

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?