PLEASE HELP WILL GIVE 30 POINTSAdd or subtract. Show your work for each problema. (x^2-4x+5)+(7x^2+2x-3) b. (7x^2+4x-6)-(2x^2-3x+1)

To solve this problem you must apply the proccedure shown below: a) You must sum terms with same exponents, therefore, you have that the sum of these two polynomials is: [tex] (x^{2}-4x+5)+(7x^{2}+2x-3) [/tex] [tex] 8x^{2} -2x+2 [/tex] b) First, you must mulitply the signs of the second polynomial by the negative sign, and them, you apply an algebraic sum. Therefore, the result is: [tex] (7x^{2}+4x-6-2x^{2}+3x-1) \\ 5x^{2} +7x-7 [/tex] The answers are: a)[tex] 8x^{2} -2x+2 [/tex]; b) [tex] 5x^{2} +7x-7 [/tex]