harodkdc7910
24.02.2022 •
Mathematics
Solve these equations
1. 3x^2-16x-10=-15x
2. (3x - 7)(2x + 5) = 0
3. 2x + 5 - 3x = 4x + 17 + x
4. x^2 - 49 = 0
5. x^2 + 8x + 12 = 0
6. 0= (2x^2 - 3x + 5) - (x^2 + x + 37)
7. 12x^2 + 4x - 1
8. x^2 - 7x + 12
9. 6x^2 - 3x - 3
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Ответ:
1. x=2,-5/3
Step-by-step explanation:
Ответ:
y = - 1.4
Step-by-step explanation:
In finding y the equation in x is redundant as y can be found from
y = 6y + 7 ( subtract y from both sides )
0 = 5y + 7 ( subtract 7 from both sides )
- 7 = 5y ( divide both sides by 5 )
y = - = - 1.4