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kirill115 [55]
3 years ago
9

Solve by factoring, help​

Mathematics
2 answers:
zubka84 [21]3 years ago
4 0

Answer:

x =  - 4 \\ x =  - 7

Step-by-step explanation:

x {}^{2}  + 28 =  - 11x \\ x {}^{2}  + 11x + 28 = 0 \\ x {}^{2}  + 7x + 4x + 28 = 0 \\ x(x + 7) + 4(x + 7) = 0 \\ (x + 4)(x + 7) = 0 \\  \\ x =  - 4 \:  \:  \:  \:  \:  \:   \\ \: x =  - 7

olchik [2.2K]3 years ago
3 0
I wrote it down for u!

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