P(x) = 7x³-2x²<span>+3x-6
</span>P(-2) = 7·(-2)³-2·(-2)²+3·(-2)-6=7·(-8)-2·4-6-6=-56-8-12=-(56+8+12)=-76
Ответ:-76.
(9²)³*(2⁷)²*3² ((3²)²)³*(2⁷)*3² 3²*²*³⁺² *2⁷*² 3 ¹⁴ *2¹⁴ 6¹⁴
------------------- = ---------------------- = ------------------ = ------------- = -------- = 6⁴
(3⁵)²*2*8³ (3⁵)²*2*(2³)³ 3⁵*² *2³*³⁺¹ 3¹⁰ *2¹⁰ 6¹⁰
81х-1=(9х-4)
81х -1=9х-4
81х-1-9х+4=0
72х+3=0
72х=0-3
72х=-3
х=-3/72
х=-0.04