( x + 3 ) 2 = ( x + 2 ) 2 + 9 x 2 + 6 x + 9 = x 2 + 4 x + 4 + 9 2 x = 4 x = 2
The number is 2, as determined by simplifying the equation derived from the problem's conditions. The solution was verified by substituting the value back into the original equation to confirm equality. Thus, the correct answer is 2.
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•°• Hasil dari -4 + 8 : (2) × 2 + 5 - 2 adalah 7.[tex] \\ \\ [/tex]Penjelasan dengan langkah-langkah:-4 + 8 : (2) × 2 + 5 - 2= -4 + (8 : 2) × 2 + 5 - 2= -4 + 4 × 2 + 5 - 2= -4 + 8 + 5 - 2= 4 + 5 - 2= 9 - 2= 7[tex]~[/tex][tex]__________________________________________________________________________________________[/tex][tex] \\ \\ [/tex] [tex]\blue{\boxed{\colorbox{skyblue}{\rm{- AvR}}}}[/tex]
[tex] - 4 + 8 \div 2 \times 2 + 5 - 2 \\ = - 4 + 4 \times 2 + 5 - 2 \\ = - 4 + 8 + 5 - 2 \\ = 4 + 5 - 2 \\ = 9 - 2 \\ = 7[/tex]