Rút gọn phân số
2^9 + 2^10
___________________
2^7. 3^2 + 2^7 . 3^3
Rút gọn phân số 2^9 + 2^10 ___________________ 2^7. 3^2 + 2^7 . 3^3
By Aaliyah
By Aaliyah
Rút gọn phân số
2^9 + 2^10
___________________
2^7. 3^2 + 2^7 . 3^3
2^9+2^10 2^7.2^2+2^7.2^3 2^7.(2^2+2^3) 2^2+2^3
______________________ = ______________________ =_____________________ =________________
2^7.3^2+2^7.3^3 2^7.3^2+2^7.3^3 2^7.(3^2+3^3) 3^2+3^3
4+8 12 1
= _______ = ____ = ___
9+27 36 3
$\dfrac{2^9+2^{10}}{2^7.3^2+2^7+3^3}$
$=\dfrac{2^7(2^2+2^3)}{2^7(3^2+3^3)}$
$=\dfrac{2^2+2^3}{3^2+3^3}$
$=\dfrac{12}{36}$
$=\dfrac{1}{3}$