Question

No 5 dan 6 .. tolong bantu :)

Answer 1

5) 2x² - 3x - 9
------------------
4x² - 9
= (2x + 3)(x - 3)
--------------------
(2x + 3)(2x - 3)
= x - 3
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2x - 3

6)( x² - x - 6)/(6x - 3) ÷ (2x - 6)/(4x - 2)
=(x + 2)(x - 3)/(6x - 3) × (4x - 2)/ (2x - 6)
= (x + 2)(x - 3)/ (6x - 3) × (4x - 2) / 2(x - 3)
= (x + 2)/(6x - 3) × (4x - 2)/2
= (x + 2)(4x - 2)
---------------------
2(6x - 3)
= 4x² + 6x - 4
-----------------
12x - 6
= (4x - 2)(x + 2)
-------------------
3(4x - 2)
= x + 2
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3