Answer:
Explanation:
3x+6x+3=0
9x+3=0
9x=0-3
9x=-3
x=-3/9
simplify
x=-1/3
Answer: x=-1/3
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6x^2-2x+1=0
Apply the quadratic formula with a=6, b=-2 and c=1.
Answer: (1+sqrt(5)*i)/6, (1-sqrt(5)*i)/6
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2x^2+4=0
2x^2=0-4
2x^2=-4
x^2=-4/2
x^2=-2
x=i*sqrt(2), -i*sqrt(2)
Answer: i*sqrt(2), -i*sqrt(2)
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-3x=2x^2-4
2x^2-(-3x)-4=0
2x^2+3x-4=0
Apply the quadratic formula with a=2, b=3 and c=-4.
Answer: (-3+sqrt(41))/4, (-3-sqrt(41))/4.
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-5x^2-6=-4x
-5x^2-(-4x)-6=0
-5x^2+4x-6=0
5x^2-4x+6=0
Apply the quadratic formula with a=5, b=-4 and c=6.
Answer: (2+sqrt(26)*i)/5, (2-sqrt(26)*i)/5.