Question

Tính:

a) 5⁶. 5² : 5³                    b) 5⁴. 5⁰ : 5²

c) 11².11⁴ . 11³                d) 10. 11² + 11² . 10²

e) 5⁴ + 5⁴ .3 + 5⁴ . 6

Giúp em với ạ? *dấu chấm = dấu nhân :))

Answer 1

\(a,5^6\cdot5^2:5^3\)
\(=5^8:5^3\)
\(=5^5\)\(=3125\)

\(b,5^4\cdot5^0:5^2\)
\(=5^4:5^2\)
\(=5^2\)\(=25\)

\(c,11^2\cdot11^4\cdot11^3\)
\(=11^6\cdot11^3\)
\(=11^9\)

\(d,10\cdot11^2+11^2\cdot10^2\)
\(=11^2\cdot\left(10+10^2\right)\)
\(=121\cdot110\)
\(=13310\)

\(e,5^4+5^4\cdot3+5^4\cdot6\)
\(=5^4\cdot1+5^4\cdot3+5^4\cdot6\)
\(=5^4\cdot\left(1+3+6\right)\)
\(=5^4\cdot10\)
\(=6250\)

Answer 2

a) = 5^6+2-3 = 5⁵ = 3125

b) = 5^4+0-2 = 5² = 25

c) = 11²⁺⁴⁺³ = 11⁹ = 2 357 947 691

d) = 11²(10.10²) = 11².10¹⁺² = 11².10³ = 121.1000 = 121 000

e) = 5⁴(1 + 3 + 6) = 5⁴.10 = 625.10 = 6250