Упростите выражения:
(х+5)*6+(х-3)²
26-а²-(5-а)² (5а-6)²
(а-4в)²-8ав-17в
-9с +(3с+d)²-d²
a(a-2b)(3b+a)²
(m+8)²-(m-2n)(m+2n)
(х+5)*6+(х-3)²
26-а²-(5-а)² (5а-6)²
(а-4в)²-8ав-17в
-9с +(3с+d)²-d²
a(a-2b)(3b+a)²
(m+8)²-(m-2n)(m+2n)
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Answers & Comments
26-а²-(5-а)²=26-a²-25+10a-a²=1-2a²+10a
(а-4в)²-8ав-17в=а²-8ав+16в²-8ав-17в=a²-16ab+16b²-17b
-9с +(3с+d)²-d²=-9c+9c²+6cd+d²-d²=-9c+9c²+6cd
a(a-2b)-(3b+a)²=a²-2ab-9b²-6ab-a²=-8ab-9b²
(m+8)²-(m-2n)(m+2n)=m²+16m+6-m²+4n²=4n²+16m+6