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Algebra Examples
y3−8
Step 1
Rewrite 8 as 23.
y3−23
Step 2
Since both terms are perfect cubes, factor using the difference of cubes formula, a3−b3=(a−b)(a2+ab+b2) where a=y and b=2.
(y−2)(y2+y⋅2+22)
Step 3
Step 3.1
Move 2 to the left of y.
(y−2)(y2+2y+22)
Step 3.2
Raise 2 to the power of 2.
(y−2)(y2+2y+4)
(y−2)(y2+2y+4)