Question

X + 2 X square + 25 - 10 x square - 20 X factorise

Answer 1

Answer:

$\huge\underline{ \underline{ \red {your \: \: \: answer}}}$

Step-by-step explanation:

$\bf\ \: x + {2x}^{2} + 25 - {10x}^{2} - 20x = 0 \\ \\ \bf\hookrightarrow { - 8x}^{2} - 19x + 25 = 0 \\ \\ \bf\hookrightarrow { 8x}^{2} + 19x - 25 = 0 \\ \\ \bf\boxed{ \bigstar \: using \: quadratic \: formula \: \bigstar} \\ \\ \bf\hookrightarrow x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ \bf\hookrightarrow \: x = \frac{ - 19± \sqrt{ {19}^{2} - 4 \times 8 \times ( - 25)} }{2 \times 8} \\ \\ \bf\hookrightarrow x = \frac{ - 19± \sqrt{361 + 800} }{16} \\ \\ \bf\hookrightarrow x = \frac{ - 19± \sqrt{1161} }{16} \\ \\ \small\underline{ \underline{ \orange{x = \frac{ - 19 + \sqrt{1161} }{16} }}} \: \: \: \small\underline{ \underline{ \blue{x = \frac{ - 19 - \sqrt{1161} }{16} }}}$

$\large\boxed{ \fcolorbox{yellow}{purple}{hope \: it \: help \: you}} \\ \huge\ddot{ \red \smile}$