Question 1023832
.
multiply 
(4-6i)(4+6i)
A)54 B)52 C)48 D)53
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<pre>
(4 - 6i)*(4 + 6i) = {{{4^2 - 6^2*(i^2)}}} = {{{4^2 - 6^2*(-1)}}} = 16 + 36 = 52.

<U>Answer</U>. Option B).
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