English, asked by 150010031, 11 months ago

11 X square + 18 x + 7 factorise​

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Answered by Anonymous
4

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Answered by Anonymous
1

Answer:

11x {}^{2}  + 18x + 7  = 0\\ 11x {}^{2}  + 11x + 7x + 7 = 0 \\ 11x(x + 1) + 7(x + 1) = 0 \\ (x + 1)(11x + 7) = 0 \\ x =  - 1 \: and \:  \:  \frac{ - 7}{11}

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