186k views
1 vote
What is the simplest form of (4x^3 + 6x - 7) + (3x^3 - 5x^2 - 5x + 9)

User Jobmo
by
7.9k points

2 Answers

1 vote
1 Remove parentheses.
4
x
3
+
6
x

7
+
3
x
3

5
x
2

5
x
+
9
4x
​3
​​ +6x−7+3x
​3
​​ −5x
​2
​​ −5x+9

2 Collect like terms.
(
4
x
3
+
3
x
3
)
+
(
6
x

5
x
)
+
(

7
+
9
)

5
x
2
(4x
​3
​​ +3x
​3
​​ )+(6x−5x)+(−7+9)−5x
​2
​​

3 Simplify.
7
x
3
+
x
+
2

5
x
2
7x
​3
​​ +x+2−5x
​2
​​
User Malcolm Boekhoff
by
8.6k points
5 votes

Simplest form:

7 x^3 − 5 x^2 + x + 2

User Sanbornc
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories