What is a positive solution of x squared -36=5x

1 answer:

4 0

Answer : 9

Explanation:

${x}^{2} - 36 = 5x$

Subtracting -5x from both sides,

${x}^{2} - 5x - 36 = 0$

Soving this quadratic equation by midterm split method,

${x}^{2} - 9x + 4x - 36 = 0 \\ \\ x(x - 9) + 4(x - 9) = 0 \\ (x - 9)(x + 4) = 0$

So the roots here will be, +9 and -4.

Since the question is about only the positive value.
Your answer will be 9.

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hram777 [196]

Answer:

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The common ratio is given as 2, so the base of any exponential must be 2 (not -2 or 2.25). The 4th term is negative, so the initial value must be negative (since the multiplying factor is positive). The only selection matching these requirements is d.

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Answer:

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