renee2266 renee2266
  • 26-08-2020
  • Mathematics
contestada

What is the simplest form of (4x^3 + 6x - 7) + (3x^3 - 5x^2 - 5x + 9)

Respuesta :

breiaforwood
breiaforwood breiaforwood
  • 26-08-2020

Simplest form:

7 x^3 − 5 x^2 + x + 2

Answer Link
Ryandeal09 Ryandeal09
  • 26-08-2020
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
​​
Answer Link

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