Ask Question
17 October, 19:24

Factor - 7x3 + 21x2 + 3x - 9 by grouping. What is the resulting expression?

(3 - 7x) (x2 - 3)

(7x - 3) (3 + x2)

(3 - 7x2) (x - 3)

(7x2 - 3) (3 + x)

+3
Answers (1)
  1. 17 October, 19:44
    0
    Take the first 2 and take out - 7x2. bringing it to (-7x2) (x-3) + (3x-9)

    then take out 3 on the right side.

    -7x^2 (x-3) + 3 (x-3)

    factors to (3-7x2) (x-3)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Factor - 7x3 + 21x2 + 3x - 9 by grouping. What is the resulting expression? (3 - 7x) (x2 - 3) (7x - 3) (3 + x2) (3 - 7x2) (x - 3) (7x2 - 3) ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers