Two trains leave stations 456 miles apart at the same time and travel toward each other. One train travels at 105 miles per hour
1 answer:
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GIVEN:
remember:
And
SOLVE:
start by multiplying the factors:
simplify by combing like terms. Most terms subtract off, leaving:
This can be factored, but it is not a perfect square, which is really what we need to take the square root.
I'm not exactly sure what form they want the answer in...
so taking the square root:
so my best answer is:
or the more factored form:
I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.
sorry for not coming to a definitive answer!
remember:
And
SOLVE:
start by multiplying the factors:
simplify by combing like terms. Most terms subtract off, leaving:
This can be factored, but it is not a perfect square, which is really what we need to take the square root.
I'm not exactly sure what form they want the answer in...
so taking the square root:
so my best answer is:
or the more factored form:
I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.
sorry for not coming to a definitive answer!