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Мне нужно, чтобы калькулятор дал ответ в корнях, это возможно?

16V2+V98 - 2V128
V- это корень

Guest Mar 12, 2017
edited by Guest  Mar 12, 2017
edited by Guest  Mar 12, 2017
 #1
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+5

16V^2 + 98V - 2V128=0, solve for V

 

Solve for V:
16 V^2 - 158 V = 0

Factor V and constant terms from the left hand side:
2 V (8 V - 79) = 0

Divide both sides by 2:
V (8 V - 79) = 0

Split into two equations:
V = 0 or 8 V - 79 = 0

Add 79 to both sides:
V = 0 or 8 V = 79

Divide both sides by 8:
Answer: |V = 0            or                V = 79/8

Guest Mar 12, 2017

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