simplifie (5*x^2-2*x^2)
▷<b>Answer: <math><mn>3</mn><msup><mrow><mi>x</mi></mrow><mrow><mn>2</mn></mrow></msup></math></b><span style='font-size:smaller'></span>
▷<b>Answer: <math><mn>3</mn><msup><mrow><mi>x</mi></mrow><mrow><mn>2</mn></mrow></msup></math></b><span style='font-size:smaller'></span>
