# math

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3. Reduce the fraction −20t 5u 2v 3
48t 7u 4v
.
A. −5t 2v 2
12u 2 C. −5v 2
12t 2u 2
B. 5t 2v 2
12u 2 D. 5v 2
12t 2u 2
4. Reduce the fraction
w 2 + 5w + 6
w 2 − w − 12
.
A. w − 2
w − 4
C. w + 2
w + 4
B. w + 2
w − 4
D. w − 2
w + 4
5. Find the illegal values of b in the fraction
2b 2 + 3b − 10
b 2 − 2b − 8
.
A. b = −5 and 2 C. b = −2 and 4
B. b = −2 and −4 D. b = −5, −2, 2 and 4
6. Multiply 3xyz 2
6y 4 by 2y
xz 4.
A. 1
y 2z 2 C. x 2
3y 2z 2
B. x 2
y 2z 2
D. 1
3y 2z 2
88

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