9x⁴+23x²+16 factorise
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Answer:
(3x²+4)² is the solution.
Step-by-step explanation:
Using, a²+2ab+b² = (a+b)²
=> (9x)⁴+2(a)(b) + (16)²
=> 3x⁴+ 2(3x)(4) + 4
=> (3x²+4)²
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