nanagaming2019c nanagaming2019c
  • 16-04-2022
  • Mathematics
contestada

hi , can anyone help me on this question using cross multiplication.​

hi can anyone help me on this question using cross multiplication class=

Respuesta :

loneguy
loneguy loneguy
  • 16-04-2022

[tex]\textbf{7).}\\\\2g^2 +5g+3\\\\=2g^2 +3g+2g+3\\\\=g(2g+3)+(2g+3)\\\\=(g+1)(2g+3)\\\\\\\textbf{10).}\\\\-6k^2+5k+21\\\\=-(6k^2 -5k-21)\\\\=-(6k^2-14k+9k-21)\\\\=-\textbf{[}2k(3k-7)+3(3k-7) \textbf{]}\\\\=-(2k+3)(3k-7)\\[/tex]

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