Question

(5^7 + 5^6 + 5^5 ) : 5^5 + 9^7 : 3^10
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Answer 1

Răspuns:

5^5(5^2+5+1) : 5^5 + (3^2)7 :3^10=

5^5(25+5+1) :5^5 +3^14 : 3^10=

5^5 × 31 :5^5 + 3^4=

31+ 3×3×3×3=

31 + 81= 112

Explicație pas cu pas:

5^5:5^5=1 gen l am simplificat in caz ca nu stii dc a disparut 5^5, in rest sper ca e bine.

Answer 2

Răspuns:

Explicație pas cu pas:

(5⁷+5⁶+5⁵) : 5⁵ + 9⁷ : 3¹⁰ = 112

= (5⁵x5²+ 5⁵x5¹ + 5⁵x1) : 5⁵ + (3²)⁷ : 3¹⁰ =

= 5⁵x(5²+5¹+1) : 5⁵ + 3⁽²ˣ⁷⁾ : 3¹⁰ =

= 5⁵x(1/5⁵) x (25+5+1) + 3⁽¹⁴⁻¹⁰⁾ =

= 1 x 31 + 3⁴ =

= 31 + 81 =

= 112