4 years ago

Which expression is equivalent to16x2+81?

1 answer:

4 0

16*X² +81

The answer is 3

(4x+9i)(4x−9i) = (4x+9i)*4x -9i((4x+9i)) = 16x2 +36i -36i -81i2 = 16x² -81(-1)

= 16x² +81

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