jordanfuller95
jordanfuller95
15-03-2017
Mathematics
contestada
complete the sqaure -32=2(x^2+10x)
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CaraHyeona17
CaraHyeona17
15-03-2017
-32=2(x^2+10x)
-32=2x^2+20x
-2x^2-20x-32=0
-2(x+2)(x+8)=0
therefore,
x+2=0 or x+8=0
so,...... x= -2 or -8
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