A few days ago
how do i work this out?
(- 4)(5m+2)-3m
and
5x – 2x(x+7)
Top 3 Answers
A few days ago
Favorite Answer
(- 4)(5m+2)-3m
=-20m-8-3m
=-20m-3m-8
= -23m-8
5x – 2x(x+7)
=5x-2x^2-14x
=-2x^2+5x-14x
=-2x^2-9x or -x(2x-9)
1
A few days ago
For the first one:
Multiply -4 times 5m and then -4 times 2
-20m-8 -3m
Then you can subtract the two m
-23m -8
For the second one:
multiply -2x times x then times 7
This causes the x to be squared.
then add the x’s
2xsquared -9x
0
A few days ago
If there are brackets with no sign in between you multiply them, always do whats in the brackets first.
so you multiply -4 by 5xm+2 and from that you minus -3xm
then you find out what x=7 is and times it by 2 and what 5times x is and minus the answers.
I am not a maths genius so this may not be right!!!
0
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles