Qisqa javob:
- \(-1\); 2) \(-12\); 3) \(-35\); 4) \(5\).
Algebraik ifodaning qiymatini topish uchun berilgan \(a\), \(b\), \(c\) qiymatlarini ifodaga qo‘yib hisoblaymiz.
\(3a-2b\), bunda \(a=\frac13,\ b=1\): \[ 3\cdot\frac13-2\cdot1=1-2=-1. \]
\(2a+3b\), bunda \(a=-3,\ b=-2\): \[ 2\cdot(-3)+3\cdot(-2)=-6-6=-12. \]
\(0{,}25a-4c^2\), bunda \(a=4,\ c=3\): \[ 0{,}25\cdot4-4\cdot3^2=1-4\cdot9=1-36=-35. \]
\(2a^2-\frac13b\), bunda \(a=2,\ b=9\): \[ 2\cdot2^2-\frac13\cdot9=2\cdot4-3=8-3=5. \]
Tekshiruv: barcha qiymatlarda avval daraja, keyin ko‘paytirish va bo‘lish, so‘ng qo‘shish-ayirish bajarildi.
