Question

check my work

Subtract (−4x2 + 2x) − (−5x2 + 2x3 + 3)?

Answer 1

(−4x2 + 2x) − (−5x2 + 2x3 + 3)
(-4x^2+2x)-(-5x^2+2x^3+3)
=(-4x^2+2x)+5x^2-2x^3-3
=-4x^2+2x+5x^2-2x^3-3
=-4x^2+5x^2-2x^3+2x-3
=x^2-2x^3+2x-3
=-2x^3+x^2+2x-3
or
=-(2x^3-x^2-2x+3)

Answer 2

looks good to me! i wouldn't factor out a minus sign however, i would leave it at
\[=-2x^3+x^2+2x-3\] but either way is correct. good work!

Answer 3

thanks

Answer 4

yw
you did it! i just checked.