Factor the difference of perfect cubes completely. 27a^3 -1000?
These are my options
(3a + 10)(9a2 – 100)
(3a – 10)(9a2 + 100)
(3a + 10)(9a2 – 30a + 100)
(3a – 10)(9a2 + 30a + 100)
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These are my options
(3a + 10)(9a2 – 100)
(3a – 10)(9a2 + 100)
(3a + 10)(9a2 – 30a + 100)
(3a – 10)(9a2 + 30a + 100)
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Verified answer
Answer is (3a – 10)(9a2 + 30a + 100)..//
it will be (3a)^3- 10^3
in the form of a^3 - b^3
=
(3a-10)(9a2+30a+100)
(3a – 10)(9a2 + 30a + 100)
(3a+10)(9a2-30a+100)
27a^3 -1000
USE FORMULA a^3 - b^3 = ( a-b) ( a^2 + ab + b^2)
27a^3 - 1000 = ( 3a - 10) ( 9a^2 + 30a + 100)
ANSWER IS D )