Question

factorise x2 - 35x + 350​

Answer 1

SOLUTION-

${x}^{2} - 35x + 350$

according to quadratic formula

$d = {b}^{2} - 4ac \\ \: \: \:\: = {35}^{2} - 4 \times 1 \times 350 \\ \: \: \: \: = 1225 - 1400 \\ \: \: \: \: = - 75 \\ \\ x = \frac{ - b + - \sqrt{d} }{2a} \\ \: \: \: = \frac{35 + - \sqrt{75} }{2 \times 1} \\ \: \: \: = \frac{35 - \sqrt{75}}{2} \: \: \: \: \: \: \: \frac{35 + \sqrt{75} }{2}$

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