To give a brainliest after someone answers or multiple people answer there is a button near it that says pick as brainliest which gives that person a gold crown...sorry i dont know what each of this symbols.mean hope this help though
Answer:
Step-by-step explanation:
-44
12 pages
Each side count as a page
21+15=36 36/3=12
Factor
=(2x - 3)(2x + 5)
roots (zero)
2x - 3 = 0
2x = 3
x = 3/2
x = 1.5
2x + 5 = 0
2x = -5
x = -5/2
x = -2.5