Register
Solve by factoring by grouping 5k^2-2k-7=9
127k views
2 votes
Solve by factoring by grouping 5k^2-2k-7=9

User Esteis
by
7.9k points

1 Answer

4 votes

5k^2-2k-7=9 \\ \\ 5k^2 - 2k - 7 - 9 = 0 \\ \\ 5k^2 - 2k - 16 = 0 \\ \\ 5k^2 + 8k - 10k - 16 = 0 \\ \\ k(5k + 8) - 2(5k + 8) = 0 \\ \\ (5k + 8)(k - 2) = 0 \\ \\ k = - (8)/(5) , 2 \\ \\

The final result is: k = -8/5, 2.
User Mogu
by
7.6k points
← Prev Question Next Question →

Related questions

User Daniel Hao
asked Nov 4, 2024 157k views
(2k^3-7k^2+3k)-(4k^2+5k)
Daniel Hao asked Nov 4, 2024
by Daniel Hao
8.6k points
1 answer
2 votes
157k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
Link Copied!