3 years ago

What is the error in this polynomial x²+9=(x+3)(x+3)?

Mathematics

1 answer:

VMariaS [17]3 years ago

8 0

Answer:

(x + 3i)(x - 3i)

Step-by-step explanation:

Wrong statement: x² + 9 = (x + 3)(x + 3)

Correct statement: x² + 9 = x² - (3i)² = (x + 3i)(x - 3i)

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3 years ago

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$\large \boxed{2}$

Step-by-step explanation:

The formula for the nth term of a geometric sequence is

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$\begin{array}{rcl}16384 & = & 4r^{(13 - 1)}}\\16384 & = & 4r^{12}\\4096 & = & r^{12}\\3.6124 & = & 12 \log r\\0.30102 & = & \log r\\r & = & 10^{0.30102}\\ & = & \mathbf{2}\\\end{array}\\\text{The common ratio is $\large \boxed{\mathbf{2}}$}$

Check:

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Answer:

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3 years ago

What is the error in this polynomial x²+9=(x+3)(x+3)?​

What is the error in this polynomial x²+9=(x+3)(x+3)?