On considère l'expression D=(2x-7)^2-36x^2. 1) Développer et réduire D. 2) Factoriser D. 3) Résoudre l'équation (8x-7)(-7-4x)=0 . 4) Calculer la valeur exacte de D quand x=\sqrt{2} .

Find the values of y: 3y^3(y^2+ 2/3y)=0

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

Which is the focus of a parabola with equation y2=4x