69 POINTS HELP ASAP Can someone just do these for me? it's test corrections so if I get it wrong I will legit hate you! (I need step by step too btw)

Answer&Step-by-step explanation:

q4: f(x)=2x^2+1  g(x)=x^2-7

find (f+g)x= f(x)+g(x)

               =(2x^2+1)+(x^2-7)

               =3x^2-6

q5: f(x)=5x-2  g(x)=2x+1

find (f+g)x= f(x)+g(x)

               =(5x-2)+(2x+1)

               =7x-1

q6: f(x)=2x^2+3  g(x)=x^2-7

find (f-g)x= f(x)-g(x)

               =(2x^2+3)-(x^2-7)

               =x^2+10

q8: f(x)=3^x+10x  g(x)=5x-3

find (f+g)x= f(x)+g(x)

               =(3^x+10x)+(5x-3)

               =3^x+15x-3

q9: f(x)=3^x+10x  g(x)=4x-2

find (f-g)x= f(x)-g(x)

               =(3^x+10x)-(4x-2)

               =3^x+6x+2

1.true 2.false? ? i think. .

step-by-step explanation:

h/o/e/s mad

step-by-step explanation:

si si si