(72^{3 .} 54²) :108⁴

=373248.2916^:136048896

=1088391168:136048896

=8

                 Chúc bạn học tốt 

a) \(\frac{72^3.54^2}{108^4}\)

\(=\frac{\left(2^3.3^2\right)^3.\left(2.3^2\right)^2}{\left(2^2.3^2\right)^4}\)

\(=\frac{2^9.3^6.2^2.6^6}{2^8.3^{12}}=2^3\)

\(=8\)

b) \(\frac{3^{10}.11+3^{10}.5}{3^9.2^4}\)

\(=\frac{3^{10}.\left(11+5\right)}{3^9.2^4}\)

\(=\frac{3^{10}.2^4}{3^9.2^4}\)

\(=3\)

8 nhé k nha

. 72^3 * 54^2 / 108^4 
= 72^3 * 54^2 / (2 * 54)^4 
= 72^3 * 54^2 / 2^4 * 54^4 
= 72^3 * 54^2 / 2^4 * 54^2 * 54^2 
= 72^3 / 2^4 * 54^2 
= 72^3 / (2^2)^2 * 54^2 
= (9 * 8)^3 / 4^2 * (9 * 6)^2 
= 9^3 * 8^3 / 4^2 * 9^2 * 6^2 
= 9 * 9^2 * (4 * 2)^3 / 4^2 * 9^2 * 6^2 
= 9 * 4^3 * 2^3 / 4^2 * 6^2 
= 9 * 4 * 4^2 * 8 / 4^2 * 36 
= 9 * 4 * 8 / 36 
= 36 * 8 / 36 
= 8 

Ta có x×S = x + x² + x³ + x⁴ + x⁵ + x⁶

=> x×S - S = x + x² + x³ + x⁴ + x⁵ + x⁶ - (1+ x + x² + x³ + x⁴ + x⁵) = x⁶ - 1

\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)

a)4^10x8^15=(2^2)¹⁰x(2^3)¹⁵

                 =2^2x10x2^3x15

                 = 2²⁰x2⁴⁵

                        =2²⁰⁺⁴⁵

                        =2⁶⁵

\(72^2\cdot54^2:108^4=1088391168:108^4=8\)

k mình

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