Evaluate the indefinite integral by using the substitution

uequals$=$x squared plus $18$x$2+18.$

Integral from nothing to nothing $2$ x left parenthesis x squared plus $18$ right parenthesis Superscript negative $15$ Baseline dx$2$xx$2+1815$dx

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Part $1$

Integral from nothing to nothing $2$ x left parenthesis x squared plus $18$ right parenthesis Superscript negative $15$ Baseline dx$2$xx$2+1815$dxequals$=$negative one fourteenth left parenthesis x squared plus $18$ right parenthesis Superscript negative $14$ Baseline plus Upper C$114$x$2+1814+$C