Perform the indicated operations. Write the answer in standard form, a+bi.
(5 + 6i)(5 - 6i)
2 answers:
Multiply complex numbers 5+6i and 5-6i in the same way as you multiply binomials.
By definition, i² is -1.
Do the multiplications.
Now cancel -30i & +30i
Now the equation becomes
________
Hope it helps.
ŕάίήвόώşάĻţ2²2²
Answer:
61
Step-by-step explanation:
(5 + 6i)(5 - 6i)
FOIL
first: 5*5 =25
outer: 5 *-6i = -30i
inner: 6i *5 = 30i
last: 6i * -6i = -36 i^2 =-36 (-1) = 36
Add together
25 -30i+30i+36
61
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