Question Number 32650 by keklou last updated on 30/Mar/18
$${f}\left({x}\right)=\mathrm{8}{x}−\mathrm{34}\sqrt{\mathrm{25}−\mathrm{4}\:\frac{\mathrm{3}}{\mathrm{2}}} \\ $$
Answered by MJS last updated on 30/Mar/18
$${f}\left({x}\right)=\mathrm{8}{x}−\mathrm{17}\sqrt{\mathrm{78}} \\ $$
Answered by Rio Mike last updated on 31/Mar/18
$$\:\mathrm{8}{x}\:−\mathrm{34}\sqrt{\mathrm{25}−\frac{\mathrm{11}}{\mathrm{2}}\:}\: \\ $$$$\mathrm{2}\left(\mathrm{4}{x}−\mathrm{17}\sqrt{\mathrm{25}−\frac{\mathrm{11}}{\mathrm{2}}}\:\right) \\ $$$$\mathrm{2}\left(\mathrm{4}{x}\:−\:\mathrm{17}\sqrt{\frac{\mathrm{39}}{\mathrm{2}}}\right) \\ $$$$\mathrm{2}\left(\mathrm{4}{x}\:−\mathrm{17}×\frac{\sqrt{\mathrm{39}}}{\sqrt{\mathrm{2}}}\right) \\ $$$$\mathrm{2}\left(\mathrm{4}{x}\:−\:\frac{\mathrm{17}\sqrt{\mathrm{39}}}{\sqrt{\mathrm{2}}}\right) \\ $$$$\mathrm{2}\left(\mathrm{4}{x}\:−\:\frac{\mathrm{17}\sqrt{\mathrm{78}}}{\mathrm{2}}\right) \\ $$