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OpenStudy (tennistar):
Mathhhh Help Plz?
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OpenStudy (tennistar):
What is the exact value for the expression the square root of 171. - the square root of 19. + the square root of 76.
OpenStudy (anonymous):
Use your calculator for number 1 to 3. the negative square root of 19 is just the same value like the one of positive 19, only with a minus before it.
OpenStudy (anonymous):
Use this hint \[\huge 171=9*19 \\ \huge 76=4*19\]
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