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Maeve Christiansen
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∙ 3y agoThis answer is:
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∙ 13y ago1. x+y=-3 (or, x = -y-3)
2. x*y=-54
Use equation 1 to substitute for x in equation 2:
(-y-3)*y = -54
y2+3y = 54
y2 + 3y - 54 = 0
Factor&solve:
(y+9)(y-6)=0
y = {-9,6}
(x,y)={(6,-9),(-9,6)}
6 & -9
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Earn +20 ptsQ: What multiplies to get -54 but adds to get -3?
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