Perform the indicated operations.

Question

(5.3z⁵-2.8z²+z²-1.6)+(7.2z³-0.2z²+11.1)-(7.4z⁵+1.7z²-5)

Answer 1

(5.3z⁵-2.8z²+z²-1.6)+(7.2z³-0.2z²+11.1)-(7.4z⁵+1.7z²-5)

 

first we will combine like terms in parenthesis

 

(5.3z⁵-1.8z²-1.6)+(7.2z³-0.2z²+11.1)-(7.4z⁵+1.7z²-5)

now solve the parenthesis and combine like terms

 

5.3z⁵-1.8z²-1.6+7.2z³-0.2z²+11.1-7.4z⁵-1.7z²+5

 

-2.1z⁵  +7.2 z³ -3.7 z² + 14.5