2a^3 (5a^2– 7a)+(3a^4 – a^5 )

9a^5-11a^4

Step-by-step explanation:

2a^3 (5a^2– 7a)+(3a^4 – a^5 )

10a^5-14a^4+3a^4-a^5

9a^5-11a^4

ghjmutmum

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.