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If f of x equals 2x squared what is the positive value of x for which f of x equals 136 With the explanation please Thanks?
Wiki User
∙ 9y ago
f(x) = 2x²
f(x) = 136
→ 2x² = 136
→ x² = 68
→ x = ±√68
As the positive value is required, x = √68 ≈ 8.246
Wiki User
∙ 9y ago
Wiki User
∙ 9y agof(x) = 2*x^2 = 136that is x^2 = 136/2 = 68
and so x = + or - sqrt(68).
But x is said to be the positive value so x = +sqrt(68).
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