Question

x^4-16 factorise completely​

Answer 1

hope it helps

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Answer 2

Answer:

$\red\longrightarrow {x}^{4} - 16 = 0 \\ \red\longrightarrow {x}^{4} = 16 \: \: \: \: \: \: \: \: \\ \red\longrightarrow {x}^{2} = \sqrt{16} \: \: \: \: \\ \red\longrightarrow {x}^{2} = 4 \: \: \: \: \: \: \: \: \: \: \\ \red\longrightarrow \: x = \sqrt{4} \: \: \: \: \: \: \: \\ \red\longrightarrow \: x = 2 \: \: \: \: \: \: \: \: \: \: \:$

$\therefore \sf \: x \: = 2$

Hope it helps you mate

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