algebra
Re: algebra
$\{[(-7)^5:7^3-2^4]^2:(-13)^2-[(-2)^4-2^2\cdot(2^3-3^2)] \}^3:\{-2-2\cdot[(-2)^2\cdot5-2\cdot(-5)^2]+2^4\cdot3-9^2\}=$998430f338b94765 ha scritto: ↑01/10/2023, 15:24 prof ho delle difficoltà con l’espressione a pagina 71 la 586
$=\{[-7^2-2^4]^2:(-13)^2-[(16-4\cdot(-1)] \}^3:\{-2-2\cdot[20-50]+48-81\}=$
$=\{[-49-16]^2:(13)^2-[(16+4] \}^3:\{-2-2\cdot[-30]+48-81\}=$
$=\{[-65]^2:(13)^2-20 \}^3:\{-2+60+48-81\}=$
$=\{[65]^2:(13)^2-20 \}^3:\{25\}=$
$=\{[5\cdot13]^2:(13)^2-20 \}^3:\{25\}=$
$=\{[5^2\cdot13^2]:(13)^2-20 \}^3:\{25\}=$
$=\{[5^2-20 \}^3:\{25\}=$
$=\{25-20 \}^3:\{25\}=$
$=\{5 \}^3:\{5\}^2=5$