Question

Ajutatima la evaluare varog.​

Answer 1

Explicație pas cu pas:

E=(x+3)^2+(x+3)(x-3)-✓3 (✓12+✓3)

E=x^2+6x+9+x^2-9-✓36-3=2x^2+6x-6-3=2x^2+6x-9

E=(2x-3)^2. E=(2x-3)^2

x=-✓2=> E1=(2×(-✓2)-3)^2=(-2✓2-3)^2=4×2+9+2×3×2✓2

E1=17+12✓2.