# Math Help - Factorising

1. ## Factorising

Hello,

I'm not quite sure if im doing this right:

Is:

4x+20:
4(-5 + x)
factorized?

and also for:

2y+16

2(8 + y)

thanks

2. Originally Posted by Sphinxy1994
Hello,

I'm not quite sure if im doing this right:

Is:

4x+20:
4(-5 + x)
factorized?

and also for:

2y+16

2(8 + y)

thanks
$4x + 20 = 4\left(\frac{4x}{4} + \frac{20}{4}\right) = 4(x + 5)$

And:

$2y + 16 = 2\left(\frac{2y}{2} + \frac{16}{2}\right) = 2(y + 8)$

3. Originally Posted by Sphinxy1994
Hello,

I'm not quite sure if im doing this right:

Is:

4x+20:
4(-5 + x)
factorized?
There should not be a "-" before the 5.

and also for:

2y+16

2(8 + y)

thanks
Correct- although there is no reason in either this one or the first problem to reverse the order ("8+ y" instead of "y+ 8"), that's not a mathematical difference.
{"extraction_info": {"found_math": true, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 2, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0, "math_score": 0.9225343465805054, "perplexity": 3620.4105602308196}, "config": {"markdown_headings": true, "markdown_code": true, "boilerplate_config": {"ratio_threshold": 0.18, "absolute_threshold": 10, "end_threshold": 5, "enable": true}, "remove_buttons": true, "remove_image_figures": true, "remove_link_clusters": true, "table_config": {"min_rows": 2, "min_cols": 3, "format": "plain"}, "remove_chinese": true, "remove_edit_buttons": true, "extract_latex": true}, "warc_path": "s3://commoncrawl/crawl-data/CC-MAIN-2016-30/segments/1469257824146.3/warc/CC-MAIN-20160723071024-00016-ip-10-185-27-174.ec2.internal.warc.gz"}