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Math

Answered

Given x^2 + 3x =18, what is the sum of the roots?

Sagot :

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Answer:

×1=-61×2=3

Step-by-step explanation:

×²+3×-18=0

×²+6×-3×-18=0

××(×+6)-3×-18=0

××(×+6)-3(×-3)=0

(×+6×(×-3)=0

×+6=0

×-3=0

×=-6

×=3

×1=-61×2=3

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