What is the range and domain of -16x^2+100x+10

What is the range and domain of -16x^2+100x+10
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This can be written -16(x²-25x/4-5/8)=-16(x²-25x/4+625/64-625/64-40/64).

This reduces to -16((x-25/8)²-665/64)=-16(x-25/8)²+665/4.

When x=25/8 this expression has a maximum value of 665/4. 

There are no constraints on the domain so the domain is (-∞,∞) while the range is (-∞,665/4).

by Top Rated User (1.1m points)

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