Question

b(Ь +4) - b-4 factorize
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Answer 1

$\huge \mathcal{ANSWER:-}$

$\implies \tt{b(b + 4) - b - 4}$

$\implies \tt{b {}^{2} + 4b - b - 4 }$

$\implies \huge \tt{4b {}^{2} - 4 }$