Radicals & Absolute Values
PSAT Math · Flashcards · Recall
PSAT MATH · FLASHCARDS
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QUESTION
What is the key product identity for conjugates
(
a
+
b
)
(
a
−
b
)
(a+\sqrt{b})(a-\sqrt{b})
(
a
+
b
)
(
a
−
b
)
?
QUESTION
What is the solution set of
∣
x
∣
<
5
|x|<5
∣
x
∣
<
5
?
QUESTION
What is the quotient rule for radicals when
a
≥
0
a\ge 0
a
≥
0
and
b
>
0
b>0
b
>
0
?
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ANSWER
a
b
=
a
b
\sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}
b
a
=
b
a
. Quotient under radical can be split into quotient of radicals.
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