👤

a) (0,25y³-0,75y³+3,5y³)-(12,6y³+3,4y³-17y³)
b) (4√2-2√2)x + (6√2-3√2)x - (8√2-√2)x + 3√2x


Răspuns :

a)(0,25y³-0,75y³+3,5y³)-(12,6y³+3,4y³-17y³) = 3y³ + y³=4y³



b) (4√2-2√2)x + (6√2-3√2)x - (8√2-√2)x + 3√2x
=
=2√2x +3√2x -7√2x + 3√2x =
=8√2x -7√2x =
=√2x