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OpenStudy (liv33):
Evaluate the expression for s=4 and t=8. 2st^2 - s^2
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OpenStudy (kinged):
Just substitute the 4 and the 8 into s and t respectively.
OpenStudy (liv33):
So it becomes 2(4)(8)^2 - 4^2 ?
OpenStudy (p0sitr0n):
yes
OpenStudy (liv33):
so then it's 64^2 - 4^2?
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