48a⁴-3b⁴=3(16a⁴-b⁴)=3(4a²-b²)(4a²+b²)
1/81m⁸-1=(1/9m⁴-1)(1/9m⁴+1)
32-1/2m⁶=1/2(64-m⁶)=1/2(8-m³)(8+m³)
А). -4x^5+y^2*3xy^4= -4x^5+3xy^6; б). (-3x^2y^3)^2=9x^4y^6.
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<span>(6x+2)^2=(6x-5)^2.</span>
(6х)^2+24x+4=(6x)^2-60x+25
36x^2+24x+4=36x^2-60x+25
36x^2+24+4-36x^2+60x-25=0
84x-21=0
84x=21
x=21/84=1/4=0.25
7) 4х^2-4х+1-4х^2+1= -4х+2
-4*0,25+2=1
ответ 1
8) 6х-4>8 х+2>1
6Х<12 х>-1
х<2
ответ (-1;2)