найдите значения выражения
а^2-2a+1 при а=101,-9;31 0,4;
х^+4х+4 при х=98,-32,-2,5
а^2-2a+1 при а=101,-9;31 0,4;
х^+4х+4 при х=98,-32,-2,5
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Answers & Comments
(-9)^2 - 2*(-9) + 1 = 81 + 18 + 1 = 100
31^2 - 2*31 + 1 = 961 - 62 + 1 = 900
(0.4^2 - 2*(0.4) + 1 = 0.16 - 0.8 + 1 = 0.36
если x^2, то:
98^2 + 4*98 + 4 = 9604 + 392 + 4 = 10000
(-32)^2 + 4*(-32) + 4 = 1024 - 128 + 4 = 900
(-2)^2 + 4*(-2) + 4 = 4 - 8 + 4 = 0
5^2 + 4*5 + 4 = 49