Marisol grouped the terms and factored the gcf out of the groups of the polynomial 6x3 – 22x2 – 9x + 33. her work is shown. step 1: (6x3 – 22x2) – (9x + 33) step 2: 2x2(3x – 11) – 3(3x + 11) marisol noticed that she does not have a common factor. which accurately describes what marisol should do next?

Marisol should find the mistake which she did at first step. When grouping first two terms and last two terms she must write

In first brackets the greatest common factor is , in second brackets the greatest common factor is 3 or -3.

Then

answer: the value of x is 7cm

step-by-step explanation:

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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