Ответ:
(8+Х)(8-Х)+(Х+2)2 = 64-х2 + х2+4х+4 = 4х+68
(8+x)(8-x)+(x+2)²=(64-x²)+
(x²+4x+4)=64-x²+x²+4x+4=64+4x+4=4x+68
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Ответ:
(8+Х)(8-Х)+(Х+2)2 = 64-х2 + х2+4х+4 = 4х+68
Ответ:
(8+x)(8-x)+(x+2)²=(64-x²)+
(x²+4x+4)=64-x²+x²+4x+4=64+4x+4=4x+68