Answered

Add the polynomials and subtarct the second polynomial from the first polynomial
1) 4x³-7x+2x-4 ; 3x³+8x²+3x-7
2) 5x³-3x+10 ; x³-6x²+4x-2
3) 6y⁴-2y²+3y-1 ; 8y⁴-5y³-2y²+6

Sagot :

Roseanncuaviz
      1.4x^3-7x+2x-4               2.5x^3-3x+10
(+)-  -3x^3-8x^2-3x+7       (+)- -x^3+6x^2-4x+2
-----------------------------      -------------------------------
       x^3-8x^2-8x+3               2x^3+6x^2-7x+12

     3.6y^4-2y^2+3y-1
(+)- -8y^4+5y^3+2y^2-6
--------------------------------
   -2y^4+5y^3+3y-7