find the quadratic equation with real coefficient which has 2-3i as a root (i=√-1)
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then other root is 2+3i
x²-(2+3i+2-3i)x +(2+3i)(2-3i)
x²-4x+4-(3i)²
x²-4x+13 ( i²=-1)
x²-(2+3i+2-3i)x +(2+3i)(2-3i)
x²-4x+4-(3i)²
x²-4x+13 ( i²=-1)
1712003:
thanks a lot
;)
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