from a second degree equation whose solutions are -3 and 4
Answers
sorry bro I am unable to solve
Step-by-step explanation:
+x+=+2i+
+x+=+-2i+
+f%28x%29+=+%28+x+-+2i+%29%2A%28+x+%2B+2i+%29+
+f%28x%29+=+x%5E2+-+4%2Ai%5E2+
+f%28x%29+=+x%5E2+%2B+4+
-------------------
check:
solve with quadratic formula
+x+=+%28-b+%2B-+sqrt%28+b%5E2+-+4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
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Question 922838: Write a quadratic equation whose solutions are 2i and -2i in standard form
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Answer by josmiceli(19441) About Me (Show Source):
You can put this solution on YOUR website!
+x+=+2i+
+x+=+-2i+
+f%28x%29+=+%28+x+-+2i+%29%2A%28+x+%2B+2i+%29+
+f%28x%29+=+x%5E2+-+4%2Ai%5E2+
+f%28x%29+=+x%5E2+%2B+4+
-------------------
check:
solve with quadratic formula
+x+=+%28-b+%2B-+sqrt%28+b%5E2+-+4%2Aa%2Ac+%29%29%2F%282%2Aa%29+