( x*2 +4 ) ( x *2 + 9 )
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Answer:
x^4 + 13x^2 + 36
Step-by-step explanation:
(x^2 + 4) (x^2 + 9)
x^2( x^2 + 9) +4( x^2 + 9)
x^4 + 9x^2 + 4x^2 + 36
x^4 + 13x^2 + 36
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