y^4+4y^2-32 factorise
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Answer:
y^4+4y^2-32
Step-by-step explanation:
hope you can understand
Answered by
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Step-by-step explanation:
=y⁴+4y²-32
=y⁴+(8-4)y²-32
=(y⁴+8y²)(-4y²-32)
=y²(y²+8)-4(y²+8)
=(y²+8)(y²-4)
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