Question

Factorise :
$x^{2} +4+3x^{2}$

Please tell the answer step by step and unnecessary answers will be reported.
I won't forget to mark the correct answer as brainlist.

Answer 1

Answer:

$→{x}^{2} + 4 + {3x}^{2} \\ \\ → {x}^{2} + {3x}^{2} + 4 \\ \\ → {4x}^{2} + 4 \\ \\→ 4( {x}^{2} + 1)$

hope it helps u❤

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