Step-by-step explanation:
[tex]simplify \: the \: expression \\ \\ - 6 {s}^{2} + ( - 4.5) \\ \\ 6 {}^{2} \times s {}^{2} - 4 \times 5 \\ \\ 36 {s}^{2} - 4 \times 5 \\ \\ 36s {}^{2} - 20 \\ \\ factorize \: the \: expression \\ \\ ( \times 6 {s}^{2} ) + ( - 4 \times 5) \\ \\ ( - 6 {s}^{2} ) - 4 \times 5 \\ \\ ( - 6 {}^{2}) - {s}^{2} - 4 \times 5 \\ \\ 36 {}^{2} - 4 \times 5 \\ \\ 4(9s {}^{2} - 5)[/tex]
