- 24 = - 2y² + 2y
12 = y² - y
12 - y² + y = 0
- 12 + y² - y = 0
y² - y - 12 = 0
y² + 3y - 4y - 12 = 0
y × ( y + 3 ) - 4( y + 3 ) = 0
( y + 3 ) × ( y - 4 ) = 0
y + 3 = 0
y - 4 = 0
y = - 3
y = 4
______________________________
9y² - 12y - 5 = 0
9y² + 3y - 15y - 5 = 0
3y × ( 3y + 1 ) - 5(3y + 1 ) = 0
( 3y + 1 ) × ( 3y - 5 ) = 0
3y + 1 = 0
3y - 5 = 0
( 3p - 5 )( p + 1 ) = - 4
3p² + 3p - 5p - 5 = - 4
3p² - 2p - 5 = - 4
3p² - 2p - 5 + 4 = 0
3p² + p - 3p - 1 = 0
p × ( 3p + 1 ) - ( 3p + 1 ) = 0
( 3p + 1 ) × ( p - 1 ) = 0
3p + 1 = 0
p - 1 = 0
3x( x - 2 ) = 24
x × ( x - 2 ) = 8
x² - 2x = 8
x² - 2x - 8 = 0
x² + 2x - 4x - 8 = 0
x × ( x + 2 ) - 4( x + 2 ) = 0
( x + 2 ) × ( x - 4 ) = 0
x + 2 = 0
x - 4 = 0
x = - 2
x = 4
m(m+10)=2
m² + 10m = 0
m² + 10m - 2 = 0
- 1 8 9 5 4 7 9
1 5 8 2 3 9 . 9 2 4 0 5 0 6 3 2 9 1 1 3 79 × 2 = 158
- 3 1 5 189 - 158 = 31
2 3 7 79 × 3 = 237
- 7 8 4 315 - 237 = 78
7 1 1 79 × 9 = 711
- 7 3 0 784 - 711 = 73
- 1 9 0 730 - 711 = 19
1 5 8 79 × 2 = 158
- 3 2 0 190 - 158 = 32
3 1 6 79 × 4 = 316
- 4 0 0 320 - 316 = 4
3 9 5 79 × 5 = 395
- 5 0 0 400 - 395 = 5
4 7 4 79 × 6 = 474
- 2 6 0 500 - 474 = 26
- 2 3 0 260 - 237 = 23
- 7 2 0 230 - 158 = 72
- 9 0 720 - 711 = 9
7 9 79 × 1 = 79
- 1 1 0 90 - 79 = 11
- 3 1 0 110 - 79 = 31
7 3 310 - 237 = 73
Пошаговое объяснение:
- 24 = - 2y² + 2y
12 = y² - y
12 - y² + y = 0
- 12 + y² - y = 0
y² - y - 12 = 0
y² + 3y - 4y - 12 = 0
y × ( y + 3 ) - 4( y + 3 ) = 0
( y + 3 ) × ( y - 4 ) = 0
y + 3 = 0
y - 4 = 0
y = - 3
y = 4
______________________________
9y² - 12y - 5 = 0
9y² + 3y - 15y - 5 = 0
3y × ( 3y + 1 ) - 5(3y + 1 ) = 0
( 3y + 1 ) × ( 3y - 5 ) = 0
3y + 1 = 0
3y - 5 = 0
______________________________
( 3p - 5 )( p + 1 ) = - 4
3p² + 3p - 5p - 5 = - 4
3p² - 2p - 5 = - 4
3p² - 2p - 5 + 4 = 0
3p² + p - 3p - 1 = 0
p × ( 3p + 1 ) - ( 3p + 1 ) = 0
( 3p + 1 ) × ( p - 1 ) = 0
3p + 1 = 0
p - 1 = 0
______________________________
3x( x - 2 ) = 24
x × ( x - 2 ) = 8
x² - 2x = 8
x² - 2x - 8 = 0
x² + 2x - 4x - 8 = 0
x × ( x + 2 ) - 4( x + 2 ) = 0
( x + 2 ) × ( x - 4 ) = 0
x + 2 = 0
x - 4 = 0
x = - 2
x = 4
______________________________
m(m+10)=2
m² + 10m = 0
m² + 10m - 2 = 0
- 1 8 9 5 4 7 9
1 5 8 2 3 9 . 9 2 4 0 5 0 6 3 2 9 1 1 3 79 × 2 = 158
- 3 1 5 189 - 158 = 31
2 3 7 79 × 3 = 237
- 7 8 4 315 - 237 = 78
7 1 1 79 × 9 = 711
- 7 3 0 784 - 711 = 73
7 1 1 79 × 9 = 711
- 1 9 0 730 - 711 = 19
1 5 8 79 × 2 = 158
- 3 2 0 190 - 158 = 32
3 1 6 79 × 4 = 316
- 4 0 0 320 - 316 = 4
3 9 5 79 × 5 = 395
- 5 0 0 400 - 395 = 5
4 7 4 79 × 6 = 474
- 2 6 0 500 - 474 = 26
2 3 7 79 × 3 = 237
- 2 3 0 260 - 237 = 23
1 5 8 79 × 2 = 158
- 7 2 0 230 - 158 = 72
7 1 1 79 × 9 = 711
- 9 0 720 - 711 = 9
7 9 79 × 1 = 79
- 1 1 0 90 - 79 = 11
7 9 79 × 1 = 79
- 3 1 0 110 - 79 = 31
2 3 7 79 × 3 = 237
7 3 310 - 237 = 73
Пошаговое объяснение: