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kidyugey
27.05.2020 •
Mathematics
(5x + 2)2 + 15x + 6 = 0
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Ответ:
X= -2/5
Step-by-step explanation:
Distribute within the parenthesis
10x + 4 +15x + 6= 0
Combine like terms
25x + 10 = 0
Isolate x
25x =-10
x= -10/25= -2/5
Check your answer by plugging it in back into the equation.
(-2 +2) +15(-2/5) + 6 = 0
0 + (-6) + 6 = 0
Ответ:
x = -0.4
Step-by-step explanation:
(5x+2)2 + 15x + 6 = 0
10x + 4 + 15x + 6 = 0 Simplify
25x + 4 + 6 = 0
25x + 10 = 0 Subtract 10 from both sides
- 10 -10
25x = -10
25x/25 = -10/25 Divide by 25 on both sides
x = -0.4
Ответ:
Step-by-step explanation:
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