Esercizio
$\left(8x^2+11y^2+5\cdot\left(-\frac{1}{3}\cdot x+\frac{13}{9}\cdot y+13\right)^2\right)\cdot9$
Soluzione passo-passo
Impara online a risolvere i problemi di passo dopo passo. (8x^2+11y^25(-1/3x+13/9y+13)^2)9. Applicare la formula: x\left(a+b\right)=xa+xb, dove a=8x^2, b=11y^2+5\left(-\frac{1}{3}x+\frac{13}{9}y+13\right)^2, x=9 e a+b=8x^2+11y^2+5\left(-\frac{1}{3}x+\frac{13}{9}y+13\right)^2. Applicare la formula: x\left(a+b\right)=xa+xb, dove a=11y^2, b=5\left(-\frac{1}{3}x+\frac{13}{9}y+13\right)^2, x=9 e a+b=11y^2+5\left(-\frac{1}{3}x+\frac{13}{9}y+13\right)^2. Applicare la formula: \left(a+b+c\right)^2=a^2+b^2+c^2+2ab+2ac+2bc, dove a=-\frac{1}{3}x, b=\frac{13}{9}y e c=13. Applicare la formula: \left(ab\right)^n=a^nb^n.
(8x^2+11y^25(-1/3x+13/9y+13)^2)9
Risposta finale al problema
$72x^2+45\left(-\frac{1}{3}x\right)^2+\frac{1736}{9}y^2+7605-\frac{130}{3}xy-390x+1690y$