Решение (3x+4)2-(3x+1)(3x-1)=49

1)=a-2√ab +b 2)p+6√pq+9q 3)16t-40√ts+25s 4)36n+84√nm+49m 1)√x³ - √y³ 2)√z³+8 3)125√t³+343 4)2√2-8√s³

А) 1,1x-2,7y+0,8x-x+3y =0,9x+0,3x
б) 27a-3,1b+9a+3,1a+0.4b-a = 38.1a-2,7b
d) 1/3x+2/5y-2x+1 1/4y = -1 2/3+1,65у
g) 15a-4x-5.6a+2.3x+a = 10,4а-1,7х
l) 67.1a-1/3b+1/5a+2b+2.5a-7b = 69,8а-4 2/3
o) 1/4b-7x-3.2b+2 3/4x+b+0.6x = -1,95b-3,65
л) xyx-2x^2y+2x-3x = -х²y-x
h) ba^2-3a^3+7aba+3a^2-8a^2b = 3a²(1-a)

y=(x^18-6x^5+4x+24)⁾= 18x¹⁷- 30x⁴+4