Simplify Algebraic Expressions
International Brotherhood of Electrical Workers Exam IBEW · Flashcards
INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS EXAM IBEW · FLASHCARDS
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QUESTION
Find and correct the simplification error:
2
x
+
3
x
2
=
5
x
3
2x + 3x^2 = 5x^3
2
x
+
3
x
2
=
5
x
3
.
QUESTION
What is the simplified form of
−
3
(
2
x
−
5
)
-3(2x - 5)
−
3
(
2
x
−
5
)
?
QUESTION
What is the simplified form of
a
2
b
3
a
b
\frac{a^2b^3}{ab}
ab
a
2
b
3
for
a
≠
0
a \ne 0
a
=
0
and
b
≠
0
b \ne 0
b
=
0
?
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ANSWER
a
b
2
ab^2
a
b
2
. Divide coefficients
a
2
/
a
=
a
a^2 / a = a
a
2
/
a
=
a
, and for
b
b
b
:
b
3
/
b
=
b
2
b^3 / b = b^2
b
3
/
b
=
b
2
.
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