Factorize completely : x⁴ - 81
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Answered by
12
hey mate..
x^4 - 81 = 0
x^4 = 81
x^4 = 3^4
^4 is cancelled on both sides..
x = +-3
x^4 - 81 = 0
x^4 = 81
x^4 = 3^4
^4 is cancelled on both sides..
x = +-3
Answered by
9
see answer
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and follow and also
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if you satisfy then support
and follow and also
THANKS
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Manas5631:
why xsquare 81+18
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Formula... (a+b)^2 = a^2 + 2ab + b^2
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