Question 717445
(a^2+4a^2)+(a^3-5a^2+7a)
REMOVE PARENTHESES AROUND a^2,4a^2
a^2+4a^2+(a^3-5a^2+7a)
REMOVE PARENTHESES AROUND a^3,-5a^2,7a
a^2+4a^2+a^3-5a^2+7a
ELIMINATE SIMILAR TERMS a^2,4a^2,-5a^2
 REPLACE WITH(1+4-5)a^2
(1+4-5)a^2+a^3+7a
SINCE (1+4-5)a^2 HAS A ZERO FACTOR
0+a^3+7a
REMOVE EXTRANEOUS ZERO(0)
a^3+7a