PRACTICE TEST 4. MATH90, 1069
1. Add and Check
Sec 4.3-5.1
( 3x + 2 ) + ( x 2 + x − 8)
2.
Subtract and Check
3.
Multiply
4.
Multiply :
(4x
2
+ 7 x3 − 7 ) − ( 5 x 2 − 7 x + 2 )
( − x )( − x )
( 0.2 x )( 0.5 x )
4
2
9
7
9x(-2x+3)
5.
Multiply:
6.
Use the Table method to multiply the following:
7. Multiply the following
8. Multiply the following
9. Multiply the following
(x
2
− x + 6) ( x + 6)
(3x + 1)(2x 2 + 3x + 1)
1 
1

p
−
p
+



7 
7

( x + 4 )( x − 4 )
10. Subtract these polynomials: (a3 − b3 ) −(−5a3 +2a2b − ab2 +3b3)
11. Multiply:
(5x-2y)(5x−3y)
12. Divide : (18t3 − 24 t2 + 6t) ÷(2t)
13. Divide: (8x2 −10 x +2) ÷2
14. Divide:
50 x5 − 7 x 4 + x 2
x
15. Express using positive exponents
16. Simplify
a
 
2
−5
5−8 i510
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PRACTICE TEST 4. MATH90, 1069
Sec 4.3-5.1
17. Multiply (leave answer in scientific notation)
(1.9 ×10 )( 3.4 ×10 )
8
−3
18. Divide(leave answer in scientific notation)
5.6 × 10−2
2.5 × 105
19. Factor completely: −6x2−9x
20. Factor :
x ( x − 2) + 7 ( x − 2)
21. Factor completely:
22.
5 x 5 + 10 x 3
Perform the indicated operation:
23.
Solve for x:
24.
Solve for x:
25. Solve for L:
13 4
−
18 9
4 x + 5 x = 10
2 1
+ x=6
3 4
P = 3L + 4W
26: Subtract these fractions and simplify, if possible:
27: Divide and simplify, if possible:
28. Solve this equation for x:
7
3
−
2a 2a
10 5
÷
2a 2a
2
2
+ 4x = 6x −
3
15
29. List these operations in the proper order: Exponent, Add, Multiply, Parenthesis
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PRACTICE TEST 4. MATH90, 1069
Sec 4.3-5.1
30.
Draw a line that has the given slope and yintercept:
Slope = m =
31.
3
, and y-intercept (0 , −3)
4
Convert this equation to slope-intercept form
y −2=
1
( x + 3)
3
(a) What is the slope?
(b) What is the y intercept?
32. Divide and simplify
58 m8
53 m3
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