Question

2/3x^3+4/5x^2-7/5, x=-1​

Answer 1

Answer:

$3.. \\ {}^{2}$

Answer 2

Answer:

=2/3*(-1)³+4/5*(-1)²-7/5

=2/3*(-1)+4/5-7/5

= -2/3+4/5-7/5

= -31+12/15

= -19/15