Femaktoran x²+8x–20=0​

Jawab:

x²+8x–20=0​

________ dikali = -20     }

                  ditambah = 8  }

(x – 2) (x + 10) = 0

x = 2 dan x = -10

HP = {-10 , 2}

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MATEMATIKA

SINOGEN

x² + 8x – 20 = 0

(x – 2) (x + 10) = 0

x – 2 = 0, x + 10 = 0

x = 2, x = – 10