Simplifying
7x2 + -35 = 0
Reorder the terms:
-35 + 7x2 = 0
Solving
-35 + 7x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left,
all other terms to the right.
Add '35' to each side of the equation.
-35 + 35 + 7x2 = 0 + 35
Combine like terms: -35 + 35 = 0
0 + 7x2 = 0 + 35
7x2 = 0 + 35
Combine like terms: 0 + 35 = 35
7x2 = 35
Divide each side by '7'.
x2 = 5
Simplifying
x2 = 5
Take the square root of each side:
x = {-2.236067978, 2.236067978}