4^3 : 4^2 = 4^ 1

2^4 : 4^2 = 2^0 = 0 

25 ^ 5 ^  d sai de 

25^2:5^4

\(a,5\cdot p\cdot5\cdot p\cdot2q\cdot4q\)

\(=5^2\cdot p^2\cdot2\cdot q\cdot2^2\cdot q\)

\(=5^2\cdot2^3\cdot p^2\cdot q^2\)

\(b,a\cdot a+b\cdot b+c\cdot c\cdot c+d\cdot d\cdot d\cdot d\)

\(=a^2+b^2+c^3+d^4\)

#Urushi

\(=\left(4\cdot6\right)^n:\left(2^2\right)^n=4^n\cdot6^n:4^n=6^n\)

a: \(3\cdot3\cdot3\cdot3\cdot3=3^5\)

b: \(y\cdot y\cdot y\cdot y=y^4\)

c: \(5\cdot p\cdot5\cdot p\cdot2\cdot q\cdot4\cdot q=25\cdot2\cdot4\cdot p^2q^2=2\cdot\left(10qp\right)^2\)

d: \(a\cdot a+b\cdot b+c\cdot c+d\cdot d\cdot d\cdot d=a^2+b^2+c^2+d^4\)

a) 3.3.3.3.3 = 3\(^5\)

b) y.y.y.y = y\(^4\)

c) 5.p.5.p.2.q.4.q = 5\(^2\).p\(^2\).q\(^2\).2\(^3\) 

(2\(^3\) ở đây là vì 2.4 = 2.2.2 = 2\(^3\))

d) a.a + b.b + c.c.c + d.d.d.d = a\(^2\)+b\(^2\)+c\(^3\)+d\(^4\)

A) 243 : 3³ = 3⁵ : 3³ = 3²

B) 7⁶ : 49 = 7⁶ : 7² = 7⁴

C) b²² : b⁵ = b¹⁷

a, 243:3^3= 3^5 : 3^3 =3^2

b, 7^6 : 49 = 7^6 : 7^2 = 7^4

c, b^22 : b^5 = b^17

\(\left(ab\right)^6:b^6=a^6b^6:b^6=a^6\)

\(\left(ab\right)^6\div b^6=a^6.b^6\div b^6=a^6\)

học tốt

xin tiick

4² x 8³

= ( 2² ) ² x  (  2³ ) ³

= 2⁴ x 2⁹ = 2¹³

4^2*8^3

=(2^2)^2*(2^3)^3

=2^4*2*9

=2^13

4²x8³=4²x(8x8)²=4²x64²=(4.64)²=256²

Đề thiếu, bạn coi lại đề.

1.
a) \(3^4\times3^5\times3^6=3^{4+5+6}=3^{15}\)

b) \(5^2\times5^4\times5^5\times25=5^2\times5^4\times5^5\times5^2=5^{2+4+5+2}=5^{13}\)

c) \(10^8\div10^3=10^{8-3}=10^5\)

d) \(a^7\div a^2=a^{7-2}=a^5\)

2.

\(987=900+80+7\\ =9\times100+8\times10+7\\ =9\times10^2+8\times10^1+7\times10^0\)

\(2021=2000+20+1\\ =2\times1000+2\times10+1\times1\\ =2\times10^3+2\times10^1+1\times10^0\)

\(abcde=a\times10000+b\times1000+c\times100+d\times10+e\times1\\ =a\times10^4+b\times10^3+c\times10^2+d\times10^1+e\times10^0\)

còn bài 2