Question

plz answer this question​

Answer 1

{(0.87)³+(0.13)³}/(0.87²-0.87×0.13+0.13²)

{(0.87+0.13)(0.87²-0.87×0.13+0.13²)}/(0.87²-0.87×0.13+0.13²)

(0.87+0.13)=1.0

hope its help uuuu

formula. a³+b³=(a+b)(a²-ab+b²)

Answer 2

Answer:

Refer to attachment.

A solution is an assignment of values to the unknown variables that makes the equality in the equation true. ... The set of all solutions of an equation is its solution set. An equation may be solved either numerically or symbolically. Solving an equation numerically means that only numbers are admitted as solutions.