Question

Factorize 3x2 – x – 4

Answer 1

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➵Question:-

Factorise :

$\mathfrak{ \red{ 3 {x}^{2} - x - 4}}$

➵Answer:-

$\mathfrak{ \blue{ 3 {x}^{2} - x - 4}} \\ \mathfrak{ \blue{ = 3 {x}^{2} + 3x - 4x - 4}} \\ \mathfrak{ \blue{ = 3x(x + 1) - 4(x + 1)}} \\ \boxed{ \mathfrak{ \purple{ = (x + 1)(3x - 4)}}}$

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