[ Answer ]
[tex]\boxed{\bold{-7x^{2} \ - \ 28x}}[/tex]
[ Explanation ]
- Simplify: [tex]\bold{4x\left(3x-7\right)-19x^2}[/tex]
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- Expand 4x(3x - 7): [tex]12x^{2}[/tex] - 28x
[tex]12x^{2}[/tex] - 28x - [tex]19x^{2}[/tex]
- Simplify [tex]12x^2-28x-19x^2[/tex]: [tex]-7x^2-28x[/tex]
[tex]-7x^2-28x[/tex]
[tex]\boxed{\bold{[] \ Eclipsed \ []}}[/tex]
