## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$-3a^4+5a^2-1.2$
Since the expression in parenthesis is preceded by a negative sign, then all terms inside the parenthesis will alter its sign when the parenthesis is removed. Hence, the given expression, $-(3a^4-5a^2+1.2)$, is equivalent to \begin{array}{l} -3a^4+5a^2-1.2 .\end{array}