Which expressions are equivalent to the model?
2 answers:
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You know
Squaring both sides gives
Then raising both sides to any integer power gives
That is, any power of where the power is a multiple of 4 will always be equal to 1.
So
But perhaps you mean to write 20+1 as the exponent, in which case
Answer:
Step-by-step explanation:
We can rewrite the question as (x-5)*(x-5).
Using the FOIL Method (First, Outside, Inside, Last):
This simplifies to