plz answer: (-31x+6x²+40)÷(2x-5)
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Answered by
1
Answer:
6x
2
+40=31x
⇒6x
2
−31x+40=0
⇒6x
2
−16x−15x+40x=0
⇒2x(3x−8)−5(3x−8)
⇒(3x−8)(2x−5)
⇒3x−8=0
⇒3x=8
⇒x=
3
8
or ⇒2x−5=0
⇒2x=5
⇒x=
2
5
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3
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