<p>This is <math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'><semantics><mrow><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mi>a</mi><mrow><msup><mi>x</mi> <mn>3</mn></msup></mrow><mo>+</mo><mi>b</mi><mrow><msup><mi>x</mi> <mn>2</mn></msup></mrow><mo>+</mo><mi>cx</mi><mo>+</mo><mi>d</mi></mrow><annotation encoding='application/x-tex'>f(x) = a{x^3} + b{x^2} + cx + d</annotation></semantics></math> something!</p>