Please see the pic, I'd solved in it.
X = 7, -3, 2
(x - 7)(x + 3)(x - 2) = 0
(x - 7)(x^2 + x - 6) = 0
x^3 - 6x^2 - 13x + 42 = 0
Step-by-step explanation:
x -2 -1 2 7
y -6 -6 -2 3
All y are in under root
Let's simplify step-by-step.

There are no like terms.
Answer:

Answer:
√7 units, √98 units
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2. So 9+b^2=16. So b^2=7. So b=√7
a^2+b^2=c^2. SO 49+49=c^2. So 98=c^2. So c=√98.