#### Answer

$7x^2+15$

#### Work Step by Step

Use the distributive property to find:
$=14x^2+5-[7x^2-14+4]
\\=14x^2+5-(7x^2-10)
\\=14x^2+5-7x^2-(-10)
\\=14x^2+5-7x^2+10$
Rearrange and regroup the terms, and then simplify using the distributive property to find:
$=(14x^2-7x^2)+(5+10)
\\=(14-7)x^2+15
\\=7x^2+15$