[tex]\implies {\blue {\boxed {\boxed {\purple {\sf { \: (x + 4)(x - 1) }}}}}}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]
[tex] {x}^{2} + 3x - 4[/tex]
[tex] = {x}^{2} - x + 4x - 4[/tex]
Taking "[tex]x[/tex]" as common from first two terms and "[tex]4[/tex]" from last two terms, we have
[tex] = x(x - 1) + 4(x - 1)[/tex]
Taking the factor [tex](x-1)[/tex] as common,
[tex] = (x + 4)(x - 1)[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]
