Can someone please help me with these ?

Answer:
Step-by-step explanation:
11) [tex]\sqrt{8x+33} =3\\8x+33=9\\8x=-24\\x=-3[/tex]
Subtract 4 from both sides. Square each side. Subtract 33 from both sides. Divide each side by 8. Your answer is -3.
12) [tex]7x-17=x^2-2x+1\\0=x^2-9x+18\\0=(x-6)(x-3)\\x=6, x=3[/tex]
Square both sides. Put all numbers on one side of the equation so that you can be equal to zero. Factor out and solve for x.