Expand and combine like terms. (2x^4+3x^3)(2x^4-3x^3)
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Alright, lets get started.
In the question given that glacier receded 4 feet a day for a period of 25 days.
Which shows in 1 day, it recedes = 4 feet
means in 1 day, the height of the glacier gets shorter = 4 feet
So, in 25 days, the height of the glacier gets shorter = 4 * 25
So, in 25 days, the height of the glacier gets shorter feet
It means the glacier will get 100 feet shorter at the end of the period of 25 days. : Answer
Hope it will help :)