M a sh q l a r

Bo‘lishni bajaring (295–305):

295. 1) b⁵: b²; 2) y¹¹: y⁷; 3) a⁷: a⁷; 4) b⁹: b⁹;

296. 1) 12x:4; 2) –15a:5; 3) –18y:6; 4) 10c:(–2).

297. 1) (8c):(–2); 2) a:5; 3) b:2; 4) 3c:.

298. 1) x:(–2); 2) –7m:; 3) a:; 4) b:.

299. 1) 5a:a; 2) 8x: x; 3) 5a:(–a); 4) (–7y):(–y).

300. 1) (–6x):(2x); 2) 15z:(5z); 3) (–6xy):(–3xy); 4) 12ab:(–4ab).

301. 1) 3a:(a); 2) b:(–b); 3) (–5c):(c); 4) (–1,69n):(1,3n).

302. 1) 8abc:(–4a); 3) –6,4xy:(–4x);

2) (–10pq):(6q); 4) (–0,24abc):(–0,6ab).

303. 1) 14a²:(7a²); 3) –0,2a¹⁰:(–a¹⁰);

2) (42m²):(6m); 4) (–2a¹⁷):(–2a¹⁷).

304. 1) m³ n² p² : (–m² n² p²); 3) (–1,7p² q² y³) : (28,9p² y³);

2) (–1a⁴ b³ c²):(–a³ bc²); 4) –6a³ b²c:(–2a² bc).

305. 1) 20m⁴ n³ : (–5m² n³); 3) (–a⁴ x³y²):(–a³xy²);

2) –1,3a³x²y³:(16,9a²xy); 4) (–a⁵ b³c):(–1a² b²c).

306. Ifodani soddalashtiring:

1) (4a³b²)³:(2a²b)²; 3) (–abc²)⁵:(–a²bc³)²;

2) (9x²y)³:(3xy)²; 4) (–x²y³z)⁴:(xyz).

Bo‘lishni bajaring (307–310):

307. 1) (12a+6):3; 2) (10b–5):5;

3) (14m–8):(–2); 4) (–6+3x):(–3).

308. 1) (5mn–6np):n; 2) (4a²–3ab):a;

3) (x–xy): x; 4) (cd–d):(–d).

309. 1) (3a²b–4ab³):(5ab); 2) (2c⁵d⁴+3c⁴d³):(–3c⁴d³);

3) (–27k⁴l⁵+21k³l²):(–10k³l²); 4) (–a⁵b³+3a⁶b²):(4a⁴b²).

310. 1) (6a–8a+10):2; 2) (8x+12y–16):(–4);

3) (10a²–12ab+8a):2a; 4) (2ab+6a²b²–4b):(2b).

311. Ifodani soddalashtiring:

1) (6a³–3a²):a²+(12a²+9a):(3a);

2) (8x³–4x²):(2x²)–(4x²–3x): x;

3) (3x²–2x²y):x²–(2xy²+x²y):(xy);

4) (a²b–3ab²):(ab)+(6b³–5ab²):b².

312. Dala hovli to‘g‘ri to‘rtburchak shaklida bo‘lib, uning bo‘yi enidan 1,5 marta uzun. Kanal qazish zarurati bo‘lgani uchun hovlining bo‘yini 6 m ga kamaytirishdi, enini esa 6 m ga uzaytirishdi. Natijada, dala hovlining yuzi avvalgi yuziga qaraganda 84 m² ga ortdi. Dala hovlining avvalgi perimetri va yuzini toping.