Question

раскрой скобки и упростит выражения. 1)t² (3t-5)+4t(t²-t)= 2)-4b²(t²-b²)+3b²(b²-t²) =

Answer 1

1) t²(3t-5)+4t(t²-t)= 3t³-5t²+4t³-4t² =7t³-9t²

2) -4b²(t²-b²)+3b²(b²-t²) = -4b²t²+4b⁴+3b⁴-3b²t² = 7b⁴-7b²t²