Impara online a risolvere i problemi di passo dopo passo. ((x+y)/2)^2-((x-y)/2)^2=xy. Applicare la formula: \left(\frac{a}{b}\right)^n=\frac{a^n}{b^n}, dove a=x+y, b=2 e n=2. Applicare la formula: \left(\frac{a}{b}\right)^n=\frac{a^n}{b^n}, dove a=x-y, b=2 e n=2. Applicare la formula: -\frac{b}{c}=\frac{expand\left(-b\right)}{c}. Applicare la formula: \frac{a}{b}+\frac{c}{b}=\frac{a+c}{b}, dove a=\left(x+y\right)^2, b=4 e c=-x^2+2xy-y^2.

((x+y)/2)^2-((x-y)/2)^2=xy