Odpowiedź:
[tex](x - 5)(3x + 2) = 3x ^{2} \\ 3x + 2x - 15x - 10 = 3x {}^{2} \\ 2x - 15x - 10 = 3x {}^{2} \\ 2x - 15x - 10 = 0 \\ - 13x - 10 = 0 \\ - 13x = 10 \\ x = - \frac{10}{13} [/tex]
Szczegółowe wyjaśnienie:
x - 5 = 3x² / (3x + 2) x ≠ -2/3 ,x ∈ R / {-2/3 }
(x - 5)(3x + 2) = 3x²
3x² + 2x - 15x - 10 = 3x² l - 3x² + 10
-13x = 10 l ÷ (-13)
x = -10/13
2x + 1 - [3x / (5x - 1)] = 0 x ≠ 1/5 ,x ∈ R / {1/5}
2x + 1 = 3x / (5x - 1) l · (5x - 1)
(2x + 1)(5x - 1) = 3x
10x²- 2x + 5x - 1 = 3x
10x² + 3x - 1 = 3x l - 3x + 1
10x² = 1 l ÷ 10
x² = 1/10 l√
x = √(1/10) = 1 / √10 = (√10) / 10 lub x = -√(1/10) = -1 / √10 = -(√10) / 10
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
[tex](x - 5)(3x + 2) = 3x ^{2} \\ 3x + 2x - 15x - 10 = 3x {}^{2} \\ 2x - 15x - 10 = 3x {}^{2} \\ 2x - 15x - 10 = 0 \\ - 13x - 10 = 0 \\ - 13x = 10 \\ x = - \frac{10}{13} [/tex]
Verified answer
Odpowiedź:
Szczegółowe wyjaśnienie:
x - 5 = 3x² / (3x + 2) x ≠ -2/3 ,x ∈ R / {-2/3 }
(x - 5)(3x + 2) = 3x²
3x² + 2x - 15x - 10 = 3x² l - 3x² + 10
-13x = 10 l ÷ (-13)
x = -10/13
2x + 1 - [3x / (5x - 1)] = 0 x ≠ 1/5 ,x ∈ R / {1/5}
2x + 1 = 3x / (5x - 1) l · (5x - 1)
(2x + 1)(5x - 1) = 3x
10x²- 2x + 5x - 1 = 3x
10x² + 3x - 1 = 3x l - 3x + 1
10x² = 1 l ÷ 10
x² = 1/10 l√
x = √(1/10) = 1 / √10 = (√10) / 10 lub x = -√(1/10) = -1 / √10 = -(√10) / 10