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3 years ago

Factor the following equation to find its zeros.

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

6 0

Answer:

A| 12, 3

Step-by-step explanation:

The polynomial can be factored by looking for factors of 36 that sum to -15. The sum being negative while the product is positive means both factors will be negative. The answer choices suggest ...

y = (x -12)(x -3)

A quick check shows this product is ...

y = x^2 -12x -3x +36 = x^2 -15x +36 . . . . as required

The factors are zero when x is either 12 or 3.

The zeros of the equation are 12 and 3.

____

Once you realize the constants in the binomial factors both have a negative sign, you can immediately choose the correct answer (A).

Or, you can use Descartes' rule of signs, which tells you that the two sign changes in the coefficients (+-+) mean there are 2 positive real roots.

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3 years ago

Please help me, I'm doing a test.

Tju [1.3M]

Answer:

(3,4)

Step-by-step explanation:

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2 years ago

Ariel collected information about mockingbirds for a science project.

ipn [44]

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Step-by-step explanation:

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2 years ago

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makkiz [27]

If they were to win $30 they would expect to get $27 in profit.

If they were to win $10 they would expect $7.

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2 years ago