shauniboo
shauniboo
24-10-2017
Mathematics
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The real solutions of the system
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daijingyi722
daijingyi722
24-10-2017
use substitution 3x-7=x^2+6x-17
x^2+3x-10=0
(x-2)*(x+5)=0
x=2 or -5, plug in back in, y= -1 or -22
check answers--both correct.
the answer is (2,-1) or (-5,-22)
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