M
a sh q l a r
O‘xshash
hadlarni ixchamlang (254–255):
254. 1) 
; 3) 
;
2) 
; 4) 
.
255. 1) 2m+q+q–4m; 3)
x2+3y2+4x–y2;
2) 3a+2b–b–a; 4) 5a2–4b2–3a2+b2.
Ko‘phadni
standart shaklga keltiring (256–261):
256.
1) 11x2+4x–x2–4x; 3) 0,3c2–0,1c2–0,5c2;
2) 2y2–3y+2y–2y2; 4) 1,2a2+3,4a2–0,8a2.
257.
1) 
x2–y+
x2+y; 2) 
;
3) 2a2b+0,7b2–5ab+1,2b2+8ab; 4) 5xy–3,5y2–2xy+1,3y2–xy.
258.
1) 
;
2) 
;
3) –9,387a–3,89b+8,197a–1,11b–0,81a;
4) 8,53x–4,73y–5,126x+2,27y+0,59x.
259.
1) 2a2b–8b2 +5a2b+5c2–3b2+4c2;
2) 3xy2+4x3–5x2y–3x3+4x2y–4xy2;
3) 
;
4) 
.
260.
1) 5b3b–4c3b–5b2c–4c(–2)c;
2) b8b–3c8b+5cb–3c5c;
3) 6a22a2+5b22a2–6a24b2–5b24b2;
4) 
.
261.
1) –9a2b+a2b+24a2
c;
2) 2abac–4aca–a2bc;
3) 
;
4) 
.
