Question

Please help and I will medal.

Answer 1

Simplify:
\[(3x^4+3x^2-x+5)-3(x^4+x^3-2x^2-6)\]

Answer 2

So, multiply the -3 with (x^4+x^3-2x^2-6)

Answer 3

Are you following?

Answer 4

\[-3x^4-3x^3+6x^2+18\]?

Answer 5

Yes good, now
\[=(3x^4+3x^2-x+5)-3x^4-3x^3+6x^2+18 \\ \\ =3x^4+3x^2-x+5-3x^4-3x^3+6x^2+18 \\ \\ \]

Answer 6

Just simplify and you're done

Answer 7

\[-3x^3+9x^2-x+23\]

Answer 8

Thank you

Answer 9

Yw