Question

9.scrie ca putere factor comun dupa model
model:2 la puterea 5 +2la 4=2×2la a4+6=2 la apatra (2+6)=2 LA A4×2LA A3 =2 LA A 7
C.3×5 LA A 15 +2×5 LA PUTEREA 15=???
B)2×3 la puterea 14±25×3la puterea a
f)5 la puterea21-4×5 la puterea 20
dau 100 de pucte

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14=???
e)3la puterea 11±6×3 la puterea 10=???

Answer 1

Explicație pas cu pas:

2⁵ + 2⁴ = 2×2⁴ + 2⁴ = 2⁴×(2 + 1) = 3×2⁴

3×5¹⁵ + 2×5¹⁵ = 5¹⁵×(3 + 2) = 5¹⁵×5 = 5¹⁶

5²¹ - 4×5²⁰ = 5×5²⁰ - 4×5²⁰ = 5²⁰×(5 - 4) = 5²⁰

3¹¹ + 6×3¹⁰ = 3×3¹⁰ + 6×3¹⁰ = 3¹⁰×(3 + 6) = 3¹⁰×9 = 3¹⁰×3² = 3¹²