Mathematics
hist
2021-06-19 14:45:30
What two numbers add to -8 and multiply to 8??
ANSWERS
DianChristiana
2021-06-19 16:53:20

[latex]a+b=-8\ ab=8\\ a=-8-b\ ab=8\\ (-8-b)b=8\ -8b-b^2-8=0\ b^2+8b+8=0\ b^2+8b+16=8\ (b+4)^2=8\ b+4 =-sqrt8 vee b+4=sqrt8\ b=-4-2sqrt2 vee b=-4+2sqrt2\\ a=-8-(-4-2sqrt2) vee a=-8-(-4+2sqrt2)\ a=-8+4+2sqrt2 vee a=-8+4-2sqrt2\ a=-4+2sqrt2 ve a=-4-2sqrt2 [/latex] [latex]-4+2sqrt2 ext { and}-4-2sqrt2[/latex]

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