bonjour
1/
(x – 3)² – (x – 1) (x – 2).
x²-6x+9 -(x²-2x-x+2)
x²-6x+9-x²+3x-2
-3x+7
2/ soit x = 100 000 donc
99 997 = x-3
99 999 = x-1x
99 998 = x-2
donc
99 997² – 99 999 x 99 998 ?(x-3)² -(x-1)(x-2)= -3x+7
= -3(100 000) +7
= -300 000 +7
= -299 993
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1) (x-3)² - (x-1)(x-2)= x²-6x+9 - x²-2x-x+2
= -9x+11 (pas sûr)
2) (100 000-3)² - (100 000-1)(100 000-2)
Je ne sais pas comment répondre à la question posée par contre
bonjour
1/
(x – 3)² – (x – 1) (x – 2).
x²-6x+9 -(x²-2x-x+2)
x²-6x+9-x²+3x-2
-3x+7
2/ soit x = 100 000 donc
99 997 = x-3
99 999 = x-1x
99 998 = x-2
donc
99 997² – 99 999 x 99 998 ?
(x-3)² -(x-1)(x-2)
= -3x+7
= -3(100 000) +7
= -300 000 +7
= -299 993