Sagot :
Answer:
1. (1−r)(1+r+r^2)
2. (5+w)(25−5w+w^2)
Step-by-step explanation:
1. 1^3 - r^3
(1 - r)(1^2 + (1)(r) + r^2)
= (1 − r)(1 + r + r^2)
2. 5^3 + w^3
(5 + w)(5^2 - (5)(w) + w^2)
= (5 + w)(25 − 5w + w^2)
Answer:
1. (1−r)(1+r+r^2)
2. (5+w)(25−5w+w^2)
Step-by-step explanation:
1. 1^3 - r^3
(1 - r)(1^2 + (1)(r) + r^2)
= (1 − r)(1 + r + r^2)
2. 5^3 + w^3
(5 + w)(5^2 - (5)(w) + w^2)
= (5 + w)(25 − 5w + w^2)