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3 years ago

Factor the polynomial. X2+3x-54

Mathematics

2 answers:

Llana [10]3 years ago

7 0

Answer: (x + 9)(x - 6)

Step-by-step explanation:

x² + 3x - 54 Find 2 numbers whose product is -54 and sum is +3

∧

-1 + 54

-2 + 27

-3 + 18

-6 + 9 = +3 This works!

Place those digits in the parentheses and it is now factored.

(x - 6)(x + 9)

Harrizon [31]3 years ago

3 0

Answer:

<h2> $\mathrm{(x + 9)(x - 6)}$ </h2>

Step-by-step explanation:

${x}^{2} + 3x - 54$

Write 3x as a difference

${x}^{2} + 9x - 6x - 54$

Factor out x from the expression

$x(x + 9) - 6x - 54$

Factor out -6 from the expression

$x(x + 9) - 6(x + 9)$

Factor out x+9 from the expression

$(x + 9)(x - 6)$

Hope I helped!

Best regards!

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krek1111 [17]

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Answer:

Please check the attached graph.

From the graph, it is clear that option B is the correct option.

Step-by-step explanation:

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Determining the y-intercept

We know that the value of the y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

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Therefore, the point representing the y-intercept is:

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Determining the x-intercept

We know that the value of the x-intercept can be determined by setting y = 0, and determining the corresponding value of x.

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Using the zero factor principle

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Please check the attached graph.

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