Use Square and Cube Roots
Middle School Math · Flashcards · Recall
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
What type of number is
2
\sqrt{2}
2
?
QUESTION
Which statement is true about
2
\sqrt{2}
2
: rational or irrational?
QUESTION
What are the solutions to
x
2
=
p
x^2=p
x
2
=
p
for a positive rational
p
p
p
written using radicals?
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ANSWER
x
=
±
p
x=\pm\sqrt{p}
x
=
±
p
. Both positive and negative roots satisfy the equation since
(
±
p
)
2
=
p
(\pm\sqrt{p})^2 = p
(
±
p
)
2
=
p
.
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