Rút gọn phân số 2^9 + 2^10 ___________________ 2^7. 3^2 + 2^7 . 3^3 17/11/2021 Bởi 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 Bình luận
$\dfrac{2^9+2^{10}}{2^7.3^2+2^7+3^3}$ $=\dfrac{2^7(2^2+2^3)}{2^7(3^2+3^3)}$ $=\dfrac{2^2+2^3}{3^2+3^3}$ $=\dfrac{12}{36}$ $=\dfrac{1}{3}$ Bình luận
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
$\dfrac{2^9+2^{10}}{2^7.3^2+2^7+3^3}$
$=\dfrac{2^7(2^2+2^3)}{2^7(3^2+3^3)}$
$=\dfrac{2^2+2^3}{3^2+3^3}$
$=\dfrac{12}{36}$
$=\dfrac{1}{3}$