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Simplifying
f(0) = 3x2 + -7
Reorder the terms for easier multiplication:
0f = 3x2 + -7
Anything times zero is zero.
0f = 3x2 + -7
Reorder the terms:
0 = -7 + 3x2
Solving
0 = -7 + 3x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x2' to each side of the equation.
0 + -3x2 = -7 + 3x2 + -3x2
Remove the zero:
-3x2 = -7 + 3x2 + -3x2
Combine like terms: 3x2 + -3x2 = 0
-3x2 = -7 + 0
-3x2 = -7
Divide each side by '-3'.
x2 = 2.333333333
Simplifying
x2 = 2.333333333
Take the square root of each side:
x = {-1.527525232, 1.527525232}
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