Lets check by putting x= - 2
3x^4+7x^3+3x^2-x-4=0
3(-2)^4+7(-2)^3+3(-2)^2+2-4=0
3*16-56+12-2=0
48-56+10=
2=0 No
x+2 is not a factor
I don’t know but i hope you have a good day
Answer:
She beat 6 levels last week
Step-by-step explanation:
She beat 6 levels last week because
7 1/2 ÷ 1 1/4 = 6
2 + 3 + 2
5 + 1 + 1
7 minus 2 + 2 or
4 + 2 + 1
The answer is 18. You add 5 to both sides of the equation. the 5 cancels out. You are left with 2/3x=12. Then you divide 12 by 2/3 to get x. 12 divided by 2/3 is 18