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Simplifying
56z2 + 2 = 225
Reorder the terms:
2 + 56z2 = 225
Solving
2 + 56z2 = 225
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add '-2' to each side of the equation.
2 + -2 + 56z2 = 225 + -2
Combine like terms: 2 + -2 = 0
0 + 56z2 = 225 + -2
56z2 = 225 + -2
Combine like terms: 225 + -2 = 223
56z2 = 223
Divide each side by '56'.
z2 = 3.982142857
Simplifying
z2 = 3.982142857
Take the square root of each side:
z = {-1.995530721, 1.995530721}
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