Question

${2}^{5} \times 4 \\ {5}^{6} \times 25 \times 5 \\ 2 \times {2}^{2} \times {2}^{3} \times 8 \\ 2 \times 4 \times 8 \\ {2}^{10} \div {2}^{6} \\ {7}^{9} \times {7}^{5}$
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Answer 1

Răspuns:

2 la 5x4=2 la5x2 la2=a la 7

5 la 6x25x5=5 la 6x5 la2x5=5 la 9

2x2 la2x2 la3x8=2 x2 la x2 la3x2 la3=2 la 9

2x4x8=2x2 la2x2 la3=2 la6

2 la10:2 la6=2 la4

7 la9 x 7 la 5=7 la 14

Answer 2

Răspuns:

2⁵·4=2⁵·(2²)²=2⁵·2⁴=2⁵⁺⁴=2⁹

5⁶·25·5=5⁶·5²·5=5⁶⁺²⁺¹=5⁹

2·2²·2³·8=2·2²·2³·2³=2¹⁺²⁺³⁺³=2⁹

2·4·8=2·2²·2³=2¹⁺²⁺³=2⁶

2¹⁰:2⁶=2¹⁰⁻⁶=2⁴

7⁹7⁵=7⁹⁺⁵=7¹⁴

aducem nr la aceeasi baza prin descompunere

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