igorpanggabean igorpanggabean
  • 17-02-2017
  • Mathematics
contestada

X=-2 a solution to x^2 + x - 2 = 0

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undine66770
undine66770 undine66770
  • 17-02-2017
Not sure this is what you're looking for, but I tried.

 Step 1: Factor left side of equation.

(x−1)(x+2)=0

Step 2: Set factors equal to 0.x−1=0 or x+2=0x=1 or x=−2

Answer:x=1 or x=−2
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