69302  |  43

263      |  1611

    50

      72

      29.

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fdjbu

36x43+43x58+43x5+43

=43x(36+58+5+1)

=43x100

=4300

36x43+43x58+43x5+43

=(36+58+5) x43+43

=99x43+43

=(100-1)x43+43

=100x43-43x1+43

=4300-43+43

=4300

\(VT=\frac{\left(43+17\right)\left(43^2-43.17+17^2\right)}{\left(43+26\right)\left(43^2-43.26+26^2\right)}=\frac{\left(43+17\right)\left[43^2-17\left(43-17\right)\right]}{\left(43+26\right)\left[43^2-26\left(43-26\right)\right]}.\)

\(VT=\frac{\left(43+17\right)\left(43^2-17.26\right)}{\left(43+26\right)\left(43^2-26.17\right)}=\frac{43+17}{43+26}=VP\left(dpcm\right)\)

\(=-43\cdot\left(38+12-50\right)=-43\cdot0=0\)

=-43.(38+12+50)

=-43.0

=0

= − 43 ⋅ ( 38 + 12 − 50 )

= − 43 ⋅ 0

= 0

\(\left(42\cdot43+43\cdot57+43\right)-360:4\)

\(=43\cdot\left(42+57+1\right)-90\)

\(=42\cdot100-90\)

=4110

43*42+57*43+43

= 43 * ( 42 + 57 + 1)

= 43 * 100

= 4300

43*42+57*43+43=43*42+57*43+43*1

43 x 42 + 57 x 43 + 43 = 43 x (42 + 57 + 1) = 43 x 100 = 4300 (k cho tớ với nhá!)

\(\frac{43^3+17^3}{43^3+26^3}=\frac{\left(43+17\right)\left(43^2-43×17+17^2\right)}{\left(43+26\right)\left(43^2-43×26+26^2\right)}=\frac{\left(43+17\right)×1407}{\left(43+26\right)×1407}=\frac{43+17}{43+26}\left(dpcm\right)\)