FACTORING EXPONENTIAL EXPRESSION USING ALGEBRAIC IDENTITIES WORKSHEET

Factorise the following :

Problem 1 :

4^x - 9

Problem 2 :

9^x - 25

Problem 3 :

64 - 9^x

Problem 4 :

16 - 25^x

Problem 5 :

4^x + 6(2^x) + 9

Problem 6 :

9^x + 10(3^x) + 25

Problem 7 :

4^x - 14(2^x) + 49

Answer Key

1) (2^x+ 3) (2^x- 3)

2) (3^x+ 5) (3^x- 5)

3) (8- 3^x)(8+ 3^x)

4) (4+ 5^x) (4- 5^x)

5) (2^x+ 3)(2^x + 3)

6) (3^x+ 5)(3^x + 5)

7) (2^x- 7)(2^x - 7)

8) (5^x- 2)(5^x - 2)

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