Question

            Factorize   

(a)   3x2 -4x -7​

Answer 1

Answer:

3x2-4x-7=0

3x2+3x-7x-7=0

3x(x+1)-7(x+1)=0

(x+1)(3x-7)=0

x=-1 or x=7/3

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Answer 2

$\boxed{\rm{\orange{Solution\longrightarrow }}}$

$3x {}^{2} - 4x - 7 \\ = > 3x {}^{2} - 7x + 3x - 7 \\ = > 3 x{}^{2} + 3x - 7x - 7 \\ = > 3x(x + 1 ) - 7(x + 1) \\ = > (3x - 7)(x + 1)$