38.3k views
5 votes
Factor 7x3 - 28x2 + 3x - 12

User Ebonnet
by
6.6k points

2 Answers

3 votes

Answer:Solution

(

4

)

(

7

2

+

3

)

Explanation:

7

3

2

8

2

+

3

1

2

7x^{3}-28x^{2}+3x-12

7x3−28x2+3x−12

Grouping

1

Find one factor

Factor by grouping

Factor by grouping

Factor by grouping

(

4

)

(

7

2

+

3

)

{\color{#c92786}{({\color{#c92786}{x-4}})({\color{#c92786}{7x^{2}+3}})}}

(x−4)(7x2+3)

User Lars Fischer
by
7.5k points
4 votes
For 7x3 and 28x2

Are those x’s multiplication? Or just an X
User Ymattw
by
6.7k points