Question

2. Which expression is in simplified form for the given expression and states the correct variable restriction? U^2-4 over (u-6)(u-2)

A. u + 2 over u - 6, U - 6
B. 1 over 2u + 12, u - 6
C. 1 over u - 3, u - 3
D. u + 2 over u - 6, u2, u6
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3. Multiply. 5a3 . 2a over ab . 35

A. 2a3 over 7
B. a3 over 7b
C. 2a2 over 7
D. 2a3 over 7b
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4. Multiply. (a-4)(a+3) . 2a3 over a2-4a . (a+3)(a-1)

A. 2 over a - 1
B. 2a2 over a-1
C. 2a over a + 1
D. 2a over a-1
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5. Divide and simplify. 3x^3 over 4y divided x over 9

A. 27x over 4y^2
B. 27x over 4y^2
C. x^3 over 12
D. 27x^2 over 4

Answer 1

The first one should be A since you can factor u^2-4 into (u+2)(u-2)

Answer 2

Hi

(u²-4)/(u-6)(u-2)

= (u²-4)/(u²-8u+12)

= (u+2)(u-2)/(u-2)(u-6)

= u+2/u-6

The answer is A

5a³(2a)/ ab(35

= 10a^4/35ab

= 10a³/35b

= 2a³/7b

The answer is D

Sorry I don't understand the others. If you think this help is not enough please feel free to report it.

Please rate my answer.