SOLUTION: Factor: y2 – 64
A) (y – 8)(y + 8)
B) (y – 8)2
C) (8 – y)(8 + y)
D) The expression is prime.
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Question 140006: Factor: y2 – 64
A) (y – 8)(y + 8)
B) (y – 8)2
C) (8 – y)(8 + y)
D) The expression is prime.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression
Rewrite as
Rewrite as
Now use the difference of squares. Remember, the difference of squares formula is where in this case and
Plug in and
So the expression
factors to
Notice that if you foil the factored expression, you get the original expression. This verifies our answer.
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