УПРОСТИТЕ ВЫРАЖЕНИЕ ПОМОГИТЕ
a).(2m-1)(2m+1)-m(4m+5)
б). 8(2x^2-3)-(1+4x)(4x-1)
в).(3а+5)(3а-5)+(а+6)(4-9а)
г). (10m-7)(10m-3)+(10m+3)(3-10m)
д).(2y+1)(2y-1)-(2y+5)(2y-5)
е).(6а-7)(7+6а)+(7-8а)(8а+7)
a).(2m-1)(2m+1)-m(4m+5)
б). 8(2x^2-3)-(1+4x)(4x-1)
в).(3а+5)(3а-5)+(а+6)(4-9а)
г). (10m-7)(10m-3)+(10m+3)(3-10m)
д).(2y+1)(2y-1)-(2y+5)(2y-5)
е).(6а-7)(7+6а)+(7-8а)(8а+7)
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Answers & Comments
-5m-1;
б) 16x^2-24-16x^2+1=
-23
в) 9а^2-25+4а-9а^2+
+24-54а=-50а-1
г) 100m^2-30m-70m+21+30m-100m^2+
+9-30m=-100m+30
д) 4y^2-1-4y^2+25=24