jaelynnm
30.08.2019 •
Mathematics
The graph is the graph of which quadratic function ?
a. f(x)=5x^2-8x+16
b. f(x)=2x^2+12x+16
c. f(x)=2x^2+12x-10
d.f(x)=-5x^2+8x-16
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Ответ:
1) (2i-4)-(6i+9) = 2i-4-6i-9 = -4i-13
2) (-3+8i)+(3-8i) = -3+8i+3-8i = 0+0i = 0