Keyword Analysis & Research: what do brackets mean in math domain

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what do brackets mean in math domain	0.53	0.8	4693	15	36
what	1.08	0.4	3348	74	4
do	1.15	0.9	3064	16	2
brackets	0.21	0.5	1104	88	8
mean	1.53	0.5	5325	32	4
in	1.97	0.7	6481	73	2
math	1.27	0.1	2807	74	4
domain	0.08	0.9	5459	89	6

Keyword	CPC	PCC	Volume	Score
what do brackets mean in math domain	0.27	1	9992	93