williambritt0926
williambritt0926
27-02-2021
Mathematics
contestada
I need urgent help with this
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faisal4craft7
faisal4craft7
27-02-2021
f(x) = (x+6i) (x-6i)
(a+b)(a-b) = a²-b²
= x² - 6i² -------> i² = -1
= x² -36(-1)
= x² + 36
option C
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rishabhthakur1927
rishabhthakur1927
27-02-2021
Answer:
B OPTION IS CORRECT BY THE IDENTITY OF x^2-y^2=(a+b)(a-b)
x^2-36i^2=(x+6i)(x-6i)
Answer Link
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