Can someone please help me with these ?

Question

asked Dec 6, 2021 86.7k views

1 Answer

Wolric · Answer 1 · 2021-12-11T12:52:31+0000

Answer:

Explanation:

11)
$√(8x+33) =3\\8x+33=9\\8x=-24\\x=-3$

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.