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3 years ago

Factor completely x2 + 20x − 36.

Mathematics

1 answer:

vodomira [7]3 years ago

5 0

Answer:

Prime

Step-by-step explanation:

x² + 20x − 36

You must find a pair of numbers that multiply to give -36 and add to give +20.

The likely candidates are 2 and 18, and they must have opposite signs to give a negative product.

+2 × (-18) = -36; +2 + (-18) = -16

-2 × 18 = -36; -2 + 8 = +16

Neither combination gives +20 as the sum.

The expression can't be factored with rational numbers.

The expression is prime.

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3 years ago

You roll a fair 6 sided dice. What is p(not 5)?

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Answer:

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Step-by-step explanation:

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3 years ago

The point, line, and pair of intersecting lines are special types of conic sections. true or false

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Answer:

True

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3 years ago

When completing an online shopping transaction, a typical shopper takes 5 seconds to select each product and another 60 seconds

natulia [17]

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Step-by-step explanation:

Given,

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Keywords: variable, division

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Scrat [10]

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4 years ago

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