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OpenStudy (anonymous):
Complete. z2 + 8z – 20 = (z – 2)(z + __) -8 20 -10 10
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OpenStudy (anonymous):
z^2 + 8z – 20 = (z – 2)(z + __) z^2 + 8z – 20 = (z – 2)(z +a) -2 + a = 8 -2*a = -20 so a =?
OpenStudy (triciaal):
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