How do you factor #7n ^ { 2} - 73n + 30#?

1 Answer
seol
Sep 2, 2017

#(7n-3)(n-10)#

Explanation:

Grouping.

  1. #(7n^2-70n)+(-3n+30)# ☼
  2. #7n(n-10)-3(n-10)# Factoring out reveals a common factor in the parentheses.
  3. #(7n-3)(n-10)# Reformat.

Source: Symbolab

☼ Note: When you group, make sure you split up the middle term so that the new parentheses groups both have a common factor.

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