Question

срочно!!!!!!!!!!!!!!!!!!!!!​

Answer 1

1)3

2)1

3)2

4)4

$3x^2*2y^4=2xy^3*3xy\\\\3x*2y^4=2y^2x*3y^2\\\\x^4*4t^3*5=5x^3t*4xt^2\\\\t^2*5x*4x^2=5x^2*xt^2$