ta có :

\(3^3.7^3=\left(3.7\right)^3=21^3\)

3³7³=(3.7)³

\(=\left(-7\right)^6\)

(-7)⁶

=(-7)⁶

^{yick cho minhf nha}

4^3.4^7 = 4^3+7 = 4^10

1) \(9\cdot9\cdot9\cdot9\cdot3\cdot3\)

\(=3\cdot3\cdot3\cdot3\cdot3\cdot3\cdot3\cdot3\cdot3\cdot3\)

\(=3^{10}\)

2) \(8\cdot2\cdot2\cdot2\cdot16\cdot4\)

\(=2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\)

\(=2^{12}\)

3) \(3\cdot3\cdot3\cdot3\cdot5\cdot5\cdot5\cdot5\)

\(=3^4\cdot5^4\)

4) \(25\cdot25\cdot25\cdot5\)

\(=5\cdot5\cdot5\cdot5\cdot5\cdot5\cdot5\)

\(=5^7\)

5) \(7\cdot49\cdot7\cdot7\cdot7\)

\(=7\cdot7\cdot7\cdot7\cdot7\cdot7\)

\(=7^6\)

6) \(8\cdot64\cdot8\cdot64\)

\(=2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\)

\(=2^{18}\)

7) \(2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot4\)

\(=2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\)

\(=2^8\)

1) 3¹⁰

2) 2¹²

3)3⁴ . 5⁴

4) 5⁷

5) 7⁶

6)8⁶

7) 2⁸.

1) \(...=3^2.3^2.3^2.3^2.3^2=3^{10}\)

2) \(...=2^3.2^3.2^4.2^2=2^{12}\)

3) \(...=3^3.3.5.5.5.5=3^4.5^4\)

4) \(...=5^2.5^2.5^2.5=5^7\)

5) \(...=7.7^2.7.7.7=7^6\)

6) \(...=2^3.\left(2^3\right)^2.2^3.\left(2^3\right)^2=2^3.2^6.2^3.2^6=2^{18}\)

7) \(...=2^6.2^2=2^8\)

(–2) . (–2) . (–2) . (–3) . (–3) . (–3) = (–2)3 . (–3)3 = [(-2). (-3)]3 = 63

Sai rồi bạn, phải là

a)5⁶=5³.5³

b)7⁸=7⁴.7⁴

c)8⁵=8².8³

\(a,5^6=15625\)

\(b,7^8=5764801\)

\(c,8^5=32768\)

tks  2 bạn :D

49.7.343 = 7 2 .7.7 3 = 7 6