-3+/-4i
-2+/-+4i
-4+/-i
-4+/-3i
1 Answer
-
2x^2+16x+50 = 0
2(x^2+8x+25) = 0
x^2+8x+25 = 0/2
x^2+8x+25 = 0
x = -b+-√(b^2-4ac)/(2a)
x = -8+-√[(8^2-4(1)(25)]/[2(1)]
x = -8+-√(64-100)/2
x = -8+-√-36 / 2
x = -8+-√36√-1 / 2
x = -8+-6i/2
x = -4+-3i
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