Answer:
=x3+3x2−3x+4
Step-by-step explanation:
Let's simplify step-by-step.
3x2−5x+1xx2+2x+4
=3x2+−5x+x3+2x+4
Combine Like Terms:
=3x2+−5x+x3+2x+4
=(x3)+(3x2)+(−5x+2x)+(4)
=x3+3x2+−3x+4
Answer:
20x
Step-by-step explanation:
A certain map scale in which 1/2 inch on the map represents an actual distance of 10 miles. A distance of x miles is represented by how many inches on this map?
From the above question:
1/2 inch = 10 miles
x inches = m
Cross Multiply
1/2m = 10x
m = 10x ÷ 1/2
m = 10x × 2
m = 20x
Answer:
-1.23076923077
Step-by-step explanation:
Answer:
hope this helps, good luck!!!
Answer:
option D
Step-by-step explanation:
Jerry solved this equation:

In the first step , she multiplied 3 inside the parenthesis
1. 
In step 2, 3/4 is added on both sides
2. 
In step 3, we take LCD 12
3. 
In step 4, add the fractions
4. 
Here, 3 or 3/1 are same.

In step 5, to remove 3/1 we multiply both sides by 1/3.
Instead of multiplying 1/3 , Jerry made an error by multiplying 3/1


In step 5, he should have multiplied both sides by 1/3