Competency 5

Topics: Algebra, Harshad number, Prime number, Arithmetic / Pages: 6 (424 words) / Published: Sep 28th, 2014
COMPETENCY 2 1). Simplify the expression by combining like terms. 5x - y - 2x + 3y a) 3x + 2y b) 2x –y c) x - y d) None of these 2. Use the distributive property to evaluate the expression. 3( x – 3 – 2y) a) 3x - 9 + 2y b) x –y c) 3x - 9 -6y d) None of these
3. Perform the indicated operation:
a) b) c) d)

4. Perform the indicated operation:
a) b) c) d)

5. Perform the indicated operation:
a) b) c) d)

6. Perform the indicated operation:
a) b) c) d)

7. Simplify the expression. Use only positive exponents in your answer:
a) b) c) d)
8. Factor Completely:

a) b) c) d)
9. Perform the indicated operation:

a) b) c) d)

10. Factor X2 + 2X + 5X + 10

a) (x+2)(x+ 3) b) (x – 2)(x -4) c) (x – 6)(x – 2) d) (x+2)(x+ 5)

11. Write without exponents a) 1.2 b) 0.000000012 c) 120000000 d) 12

12. Perform the indicated operation: ( m2 + 4m - 8 ) + ( m2 + 2m + 10

a) 2m2 +6m +2 b) c) 6m +2 d) 2m - 2

13. Simplify by combining like terms: 3( 2x + 1 ) - 4

a) 3x -4 b) 6x - 1 c) x - 4 d) 4x -4
14. Perform the indicated operation: ( X2 )3

a) X3 b) X10 c) X2 d) X6

15. Perform the indicated operation: ( X2 Y5 ) 0

a) 7 b) 5 c) 1 d) 2.

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