12 x 2 − 9 x + 15 = 3 ( 4 x 2 − 3 x + 5 )
12x² - 9x + 15
It can be written as . . .
3 ( 4x² - 3x + 5 )
but that's just a different way to write the same thing. It doesn't tell you anything new, until you know what number 'x' is.
The expression 12 x 2 − 9 x + 15 can be simplified by factoring out the common factor of 3 to give 3 ( 4 x 2 − 3 x + 5 ) . The quadratic part inside the parentheses has a negative discriminant, indicating there are no real roots. Thus, the expression in its simplest form is 3 ( 4 x 2 − 3 x + 5 ) .
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•°• Luas permukaan kubus yang rusuknya 8 cm adalah 384 cm².[tex] \\ \\ [/tex]Penjelasan:panjang rusuk (s) = 8 cmLuas permukaan (Lp) = ?[tex] \: [/tex]Lp = 6s²Lp = 6(8²)Lp = 6(64)Lp = 384 cm²[tex] \: [/tex]•°• Jadi, luas permukaan kubus tersebut adalah 384 cm².[tex]~[/tex][tex]__________________________________________________________________________________________[/tex][tex] \\ \\ [/tex] [tex]\blue{\boxed{\colorbox{skyblue}{\rm{- AvR}}}}[/tex]