Answer :

TSO
[tex]75x^2+45x+6[/tex]

[tex]3 \times 5^2 \times x^2 +(3^2 \times 5) +2 \times 3[/tex]

[tex]3( 25x^2+15x+2)[/tex]

[tex]3(5x+1)(5x+2)[/tex]

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