x3+1 factor using identities
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Sᴋ᭄Sᴀʙɪʀᴮᴼˢˢ
X4 is the answer
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Answer:
The Factorisation will be (x²+3x)(x+1).
Step-by-step explanation:
= x³+1
We can write it as:
= x³+(1)³
= Using Identity: A³+B³ = A³ + B³ + 3A²B + 3AB²
= x³+1+3[x²*1]+3[x*1²]
= x³+1+3x²+3x
= x²(x+1)+3x(x+1)
= (x²+3x)(x+1)
Hope this helps.
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