Free Printable 2nd Retest: Unit 7 Exponents& Polynomiials

1.

Add to Simplify:
(4x - 2x³) + (5x³ - 4x + 5)

a)

3x³ + 5

b)

3x³ + 8x + 5

c)

3x² + 5

d)

7x³ + 8x + 5

2.

Simplify: (6x⁷)(4x²)

a)

10x⁹

b)

24x¹⁴

c)

24x⁹

d)

10x¹⁴

3.

Simplify:
(xy²)⁴

a)

x⁴y²

b)

x⁴y⁸

c)

x³y²

d)

x⁵y⁶

4.

10(x+y+z)

a)

10x+y+z

b)

10x+10y+z

c)

10x+10y+10z

d)

10xyz

5.

Find the product:
(x + 12)(x - 12)

a)

x² - 144

b)

x² + 144

c)

x² + 12x - 144

d)

x² - 12x + 144

6.

Simplify:
(x-7)²

a)

x²-49

b)

x²+49

c)

x²-14x+49

d)

x²-14x-49

7.

Simplify: (6x⁷)(4x²)

a)

10x⁹

b)

24x¹⁴

c)

24x⁹

d)

10x¹⁴

8.

a)

4y⁶

b)

4y²²

c)

30y⁶

d)

30y²²

9.

$\left(2x^2y^3\right)^2$

a)

$2^2x^4y^5$

b)

$2x^4y^5$

c)

$4x^2y^5$

d)

$4x^4y^6$

10.

$\frac{x^{-2}}{x^{-10}y^{-8}}$

a)

$\frac{x^8}{y^{-8}}$

b)

$x^{20}y^8$

c)

$x^8y^8$

d)

$\frac{x^{10}y^8}{x^2}$

11.

$\frac{\left(3x^3y\right)\left(4x^2y^2\right)}{6x^4y^6}$

a)

$2xy^3$

b)

$6xy^3$

c)

$\frac{2x}{y^3}$

d)

$\frac{6x}{y^3}$

12.

Simplify 6x⁰y^-4

a)

$\frac{6}{y^{-4}}$

b)

$\frac{6x}{y^4}$

c)

0

d)

$\frac{6}{y^4}$

13.

Which is greater, 2654⁰ or 5⁰?

a)

2654⁰

b)

5⁰

c)

They are the same

d)

Zero is greater

14.

Divide the polynomial by the monomial.

a)

2x⁸-8x²-28x

b)

2x⁸-2x²-7x

c)

8x⁷-8x-28x

d)

2x⁷-2x -7

15.

Divide the polynomial by the monomial.

a)

15x⁹ - 8x³

b)

3x⁶ - 8x³

c)

-5x¹²

d)

3x⁶ - 40x³

16.

Which list has only prime numbers?

a)

2, 3, 4, 5

b)

1, 5, 7, 9

c)

2, 3, 5, 7

d)

2, 4, 6, 8

17.

What is the only even number that is prime?

a)

1

b)

2

c)

4

d)

10

18.

√24

a)

4√6

b)

2√6

c)

6√2

d)

2√12

19.

Simplify:
√45

a)

9√5

b)

3√5

c)

5√9

d)

3√15

20.

Simplify: $2\sqrt[]{16}$

(a)

2nd Retest: Unit 7 Exponents& Polynomiials

Total questions: 20

Worksheet time: 1hrs 2mins

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