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Simplifying
x(3x) + -70 = -5
Remove parenthesis around (3x)
x * 3x + -70 = -5
Reorder the terms for easier multiplication:
3x * x + -70 = -5
Multiply x * x
3x2 + -70 = -5
Reorder the terms:
-70 + 3x2 = -5
Solving
-70 + 3x2 = -5
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '70' to each side of the equation.
-70 + 70 + 3x2 = -5 + 70
Combine like terms: -70 + 70 = 0
0 + 3x2 = -5 + 70
3x2 = -5 + 70
Combine like terms: -5 + 70 = 65
3x2 = 65
Divide each side by '3'.
x2 = 21.66666667
Simplifying
x2 = 21.66666667
Take the square root of each side:
x = {-4.654746682, 4.654746682}
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