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miss Akunina [59]
3 years ago
15

2x^2+3x-9=0 what is this answer ​

Mathematics
1 answer:
AlladinOne [14]3 years ago
5 0

Answer:

x = 3 \:  \:  \:  \:  \:  \: or \:  \:  \:  \: x =   - \frac{3}{2}

Step-by-step explanation:

2x^2+3x-9=0 \\ 2x {}^{2}  + 3x - 6x - 9 = 0 \\ x(2x + 3) - 3(2x + 3) = 0 \\ (x - 3) \:  \:  \:  \: or \:  \:  \:  \:  \: (2x + 3) = 0 \\ x - 3 = 0 \:  \: or \:  \:  \: 2x + 3 = 0  \\ x = 3 \:  \:  \:  \:  \:  \:  \:  \:  \: or \:  \:  \:  \: x =    - \frac { 3}{2}

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