Rewrite 512x^3 as (8x)^3
(8x)^3 + 2197y^3
Rewrite 2197y^3 as (13y)^3
(8x)^3 + (13y)^3
Since both terms are perfect cubes, factor using the sum of cubes formula.
a^3 + b^3 = (a + b)(a^2 - ab + b^2) where a = 8x and b = 13y.
(8x + 13y)((8x)^2 - (8x)(13y) + (13y)^2)
Simplify
(8x + 13y)(64x^2 - 104xy + 169y^2)
Answer:
4+36x
Step-by-step explanation:
you multiply the number on the outside of the parentheses with the numbers in the inside of the parentheses.
4 times 1 = 4
4 times 9x = 36x
36x+4
Answer:
x = -27
Step-by-step explanation:
Let's solve your equation step-by-step:
x + 12 = -15
Subtract 12 from both sides of the equation:
x + 12 - 12 = -15 - 12
x = -27
So therefore, that is how you found your answer: x = -27
Answer: Is True
Step-by-step explanation:
these question is true