1. 9x^2-1=0
9x^2=1
x^2=1/9x=--1/3 и +1/3
рисуешь параболу
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(a³·²¹×a⁷·³⁶)/a⁸·⁵⁷ при а=12
Решение:
(a³·²¹×a⁷·³⁶)/a⁸·⁵⁷=
a³·²¹⁺⁷·³⁶/a⁸·⁵⁷=
a¹⁰·⁵⁷/a⁸·⁵⁷=
a¹⁰·⁵⁷⁻⁸·⁵⁷=a²=12²=144.
<span>1) 9x + 2 < 0
9x<-2
x<-2/9
</span><span>2) - 4x - 5 <= 0
</span>-4x<=5
x>=-5/4
<span>3) - 2x + 9 < - 3
</span>-2x<-12
x>6
<span>4) - 4x + 3 => 5
</span>-4x=>2
x<=1/2
<span>5) 4 ( x - 1/2 ) <= 7 ( x + 1 )
</span>4x-2<=7x+7
3x=>-9
x=>-3
2,5x=-7,5
х=-7,5/2,5
х=-3
3x-13,5=0
3х=13,5
х=13,5/3
х=4,5
4y+2=8+5y
2-8=5у-4у
у=-6
|x+5|=6
х=6-5
х=1