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Verified answer
4x kdrt + 3x - 7 -(2x kdrt - x - 5)2x kdrt + 4x -2
jawabannya b
tolong beri bintang 5
- 4x² + 3x - 7
- 2x² - x - 5
Ditanya : (2x² - x - 5) - (4x² + 3x - 7) = .....?
Penyelesaian :
(2x² - x - 5) - (4x² + 3x - 7)
= 2x² - x - 5 - 4x² - 3x + 7
= 2x² - 4x² - x - 3x - 5 + 7
= - 2x² - 4x + 2
Jawaban : C. - 2x² - 4x + 2
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