Question

`153 = x ^(2) + 10x`
please answer.. ​

Answer 1

`\huge\underline\color{pink}{Answer ☘}`

`153 = x {}^(2) + 10x \\ x {}^(2) + 10x - 153 = 0 \\ \\ using \: quadratic \: formula... \\ \\ x = \frac{ - b \: ± \sqrt{b {}^(2) - 4ac } }{2a} \\ \\ a = 1\\ b = 10\\ c = - 153 \\ \\ x = \frac{ - 10 \: ± \: \sqrt{10 {}^(2) - 4 * 1 * ( - 153)} }{2 * 1} \\ x = ( - 10 \: ± \: 2 √(178) )/(2) \\ \\ x = ( - 10 + 2 √(178) )/(2) \\ or \\ x = ( - 10 - √(178) )/(2) \\ \\ x = - 5 \: ± \: √(178)`

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