Question

(7la outerea a3)totul la puterea a 4×7la puterea21÷7 la puterea30​

Answer 1

Răspuns:

$(7 {}^{3} ) {}^{4} \times 7 {}^{21} \div 7 {}^{30} \\ {7}^{12} \times 7 {}^{21} \div 7 {}^{30} = \\ 7 {}^{33} \div 7 {}^{30} = 7 {}^{3} = 343$

Answer 2

Răspuns:

(7³)⁴·7²¹:7³⁰=7³ˣ⁴·7²¹:7³⁰=7¹²·7²¹:7³⁰=7¹²⁺²¹⁻³⁰=7³=7·7·7=343

cand avem aceeasi baza la inmultire exponentii se aduna , la impartire se scad