Mathematics, 24.07.2020 21:01 reginaldlegette
Factor the polynomial expression 4x2 +9.
Answers: 2
Now subtract 9 from both sides:
Divide both sides by 4:
Then take the square root of both sides:
, which of course is not allowed. Therefore, we have to allow for the imaginary numbers in this solution. Knowing that,
is an equivalent radicand, we can now replace -1 with its imaginary counterpart:
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