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3 years ago

Solve the equation for all real solutions. 9x^2+30x+25= 0

Mathematics

1 answer:

UkoKoshka [18]3 years ago

7 0

Answer:

x = - $\frac{5}{3}$

Step-by-step explanation:

Given

9x² + 30x + 25 = 0 ← left side is a perfect square

(3x + 5)² = 0, thus

3x + 5 = 0 ⇒ 3x = - 5 ⇒ x = - $\frac{5}{3}$

solution is x = - $\frac{5}{3}$ with multiplicity 2

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As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

Step-by-step explanation:

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Answer:

Step-by-step explanation:

There are two answers to this.

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Please don't ask me what the answer is. The question does not make it clear enough to give you one answer. I do suggest you draw a diagram to show both possibilities. Your teacher will likely applaud you for poking holes in the question.

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