Modern Algebra II

Sections 6.1, 6.2 Review

A. AB. BC. CD. D

A. Simplify (–3x2y)(5x3y5).

A. –15x5y6

B. –15x6y5

C. 15x5y6

D.

A. AB. BC. CD. D

B. Simplify (4x–2)(xy–3).

A.

B.

C.

D.

1. A2. B3. C4. D

A. Simplify (x3)5.

A. x15

B. x8

C. x2

D.

1. A2. B3. C4. D

B. Simplify .

A.

B.

C.

D.

A. AB. BC. CD. D

A.

B.

C.

D.

A. AB. BC. CD. D

A. 2

B. 20

C. 2 × 102

D. 2.592 × 1013

BIOLOGY A petri dish started with 3.6 × 105 germs in it. A half hour later, there are 7.2 × 107. How many times as great is the amount a half hour later?

A. AB. BC. CD. D

A. yes, 5

B. yes, 8

C. yes, 3

D. no

A. Is a polynomial? If it a polynomial,

state the degree of the polynomial.

A. AB. BC. CD. D

B. Is a polynomial? If it a polynomial, state the degree of the polynomial.

A. yes, 2

B. yes,

C. yes, 1

D. no

1. A2. B3. C4. D

A. 7x2 + 3x – 8

B. –x2 + 3x – 8

C. –x2 + 3x + 2

D. –x2 + x + 2

A. Simplify (3x2 + 2x – 3) – (4x2 + x – 5).

1. A2. B3. C4. D

A. 9x2 + 6x + 7

B. –7x2 – 5x + 6

C. 3x2 – 6x + 7

D. 3x2 – 2x + 6

B. Simplify (–3x2 – 4x + 1) – (4x2 + x – 5).

1. A2. B3. C4. D

A. –3x2 – 2x + 5

B. –4x4 – 3x2 – 6x

C. –3x4 + 2x2 – 5x

D. –3x4 – 2x3 + 5x

Find –x(2x3 – 2x + 5).

A. AB. BC. CD. D

A. x3 + 7x2 + 10x – 8

B. x2 + 4x + 2

C. x3 + 3x2 – 2x + 8

D. x3 + 7x2 + 14x – 8

Find (x2 + 3x – 2)(x + 4).