✨ Best Answer ✨
４５=3*2×5
よって
3*2×5 ×5 ＝(3×5)*2
3*2×5 ×5×2*2 =(3×5×2)*2
3*2×5 ×5×2*4 =(3×5×2*2)*2
3*2×5 ×5×3*2 =(3*2×5)*2
よって
a＝5,20,80,45
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
うーん、因数分解からわかりません…。