Omar grouped the terms and factored the gcf out of the groups of the polynomial 3x3 – 15x2 – 4x + 20. his work is shown. step 1: (3x3 – 15x2) + (–4x + 20) step 2: 3x2(x – 5) + 4(–x + 5) omar noticed that he does not have a common factor. which accurately describes what omar should do next? a omar should realize that his work shows that the polynomial is prime. b omar should go back and regroup the terms in step 1 as (3x3 – 15x2) – (4x + 20). c in step 2, omar should factor only out of the first expression. d omar should factor out a negative from one of the groups so the binomials will be the same.

D) Omar should factor out a negative from one of the groups so the binomials will be the same.

Step-by-step explanation:

When Omar factored both the groups in step 2 the terms inside the parenthesis were not the same .There was a sign difference .In the next step he should take out a  negative from one of the groups then the terms inside the parenthesis will become same .

Step 1:

step 2:

Step 3:

answer: 1 and 3

step-by-step explanation:

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)