jessie6516
30.07.2020 •
Mathematics
Is this problem false 5x – [7 - (2x - 1)] = 3(x - 5) + 4(x + 3)
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Ответ:
3x
Step-by-step explanation:
Ответ:
Ответ:
answer:
−13x^2 − 130x − 273
= -13(x^2 + 10x + 21)
= - 13(x + 3)(x + 7)
- 13(x + 3)(x + 7) = 0
x + 3 = 0; x = -3
x + 7 = 0; x = -7
answer
d) x = −7 or x = −3
step-by-step explanation: