Question

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Answer 1

Răspuns:

Explicație pas cu pas:

E1, E2, E3 sunt negative, deci produsul lor va fi tot negativ

4,(4) = (44 - 4)/9 = 40/9

18/35*7/12/40/9 = 4/3 = 16/12

xy^4*x^3yz*yz = x^4y^6z^2

________

Raspuns c)

Answer 2

E1 = - 18/35xy⁴ ; E2 = - 7/12x³yz ; E3 = - 4,(4)yz = - 40/9yz

E1 × E2 × E3 = - 18/35xy⁴ × (- 7/12x³yz) × (- 40/9yz)

= - 2/5xy⁴ × 1/3x³yz × 10yz

= - 2xy⁴ × 1/3x³yz × 2yz

= - 4/3x⁴y⁶z² = - 16/12x⁴y⁶z²

varianta c)