Question

Can someone please help me with these ?

Answer 1

Answer:

Step-by-step explanation:

11)  $\sqrt{8x+33} =3\\8x+33=9\\8x=-24\\x=-3$

Subtract 4 from both sides.  Square each side.  Subtract 33 from both sides.  Divide each side by 8.  Your answer is -3.

12)  $7x-17=x^2-2x+1\\0=x^2-9x+18\\0=(x-6)(x-3)\\x=6, x=3$

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.