g) y(y+3) = -4(-4 + 3) = 16 + (-12) = 4
h) [tex]\frac{3}{4}[/tex] (t - 2)² = [tex]\frac{3}{4}[/tex]( -6 - 2)² = [tex]\frac{3}{4}[/tex]( 36+4) = 27+3= 30
e) 3mn + m²n = 3 x 2 x (-6) + 2² x (-6) = -36 + 4 x (-6) = -36 + (-24) = -60
f) 2r(p + 1)² = 2 x (-2) ( -4 +1) = -4( -4 +1 ) = 16 + (-4) = 12
g) [tex]\frac{2}{7}[/tex](c - 2d)² = [tex]\frac{2}{7}[/tex][2 - 2 x (-6)]² = [tex]\frac{2}{7}[/tex](4 - 4 x 36)= [tex]\frac{8}{7}[/tex] - [tex]\frac{208}{7}[/tex]= [tex]-\frac{200}{7}[/tex]= 28[tex]\frac{4}{7}[/tex]
h) 0,2d² (c-d) = (0,2 x -5)² [0- (-5)] = 1 x 5 = 5
jakby były błędy to najmocniej przepraszam
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g) y(y+3) = -4(-4 + 3) = 16 + (-12) = 4
h) [tex]\frac{3}{4}[/tex] (t - 2)² = [tex]\frac{3}{4}[/tex]( -6 - 2)² = [tex]\frac{3}{4}[/tex]( 36+4) = 27+3= 30
e) 3mn + m²n = 3 x 2 x (-6) + 2² x (-6) = -36 + 4 x (-6) = -36 + (-24) = -60
f) 2r(p + 1)² = 2 x (-2) ( -4 +1) = -4( -4 +1 ) = 16 + (-4) = 12
g) [tex]\frac{2}{7}[/tex](c - 2d)² = [tex]\frac{2}{7}[/tex][2 - 2 x (-6)]² = [tex]\frac{2}{7}[/tex](4 - 4 x 36)= [tex]\frac{8}{7}[/tex] - [tex]\frac{208}{7}[/tex]= [tex]-\frac{200}{7}[/tex]= 28[tex]\frac{4}{7}[/tex]
h) 0,2d² (c-d) = (0,2 x -5)² [0- (-5)] = 1 x 5 = 5
jakby były błędy to najmocniej przepraszam
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