Approved science keto if you take all the packaging - вопрос №1222314 от Полинка8769532578 09.09.2021 08:12

Question

Алгебра: Approved science keto if you take all the packaging off it really is smelly. even the money smells of it. we go home and everything smells of it. he pauses. the sweet smell of success i suppose, and then laughs at his own bad joke.

Полинка8769532578 · Answer

N 1
x^2 - 5x = 14
x^2 - 5x - 14 = 0
D = 25 + 56 = 81 = 9^2
x1 = ( 5 + 9 ) : 2 = 7
x2 = ( 5 - 9 ) : 2 = - 2
N 2
9 + 4x^2 - 12x = 0
4x^2 - 12x + 9 = 0
D = 144 - 144 = 0
x = 12 : 8 = 1,5
N 3
2x^2 - 9x - 5 = 0
D = 81 + 40 = 121 = 11^2
x1 = ( 9 + 11 ) : 4 = 5
x2 = ( 9 - 11 ) : 4 = - 0,5
N 4
4x^2 = 9 + 16x
4x^2 - 16x - 9 = 0
D = 256 + 144 = 400 = 20^2
x1 = ( 16 + 20 ) : 8 = 4,5
x2 = ( 16 - 20 ) : 8 = - 0,5
N 5
3 + 4x^2 - x = 0
4x^2 - x + 3 = 0
D = 1 - 48 = - 47
D < 0 ; Нет корней
N 6
x^2 + x = 0
x( x + 1 ) = 0
x1 = 0
x2 = - 1
N 7
8 - 2с^2 = 0
2( 4 - c^2 ) = 0
2( 2 - c )( 2 + c ) = 0
C1 = 2
C2 = - 2

Approved science keto if you take all the packaging off it really is smelly. even the money smells of it. we go home and everything smells of it." he pauses. "the sweet smell of success i suppose," and then laughs at his own bad joke.