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1 year ago

Is (x+5) a factor of f(x)=x^3 - 4x^2 + 3x + 7? use either the remainder theorem or the factor theorem to explain your reasoning.

Mathematics

1 answer:

Rufina [12.5K]1 year ago

3 0

Answer:

Step-by-step explanation:

Use synthetic division

-5 | 1 -4 3 7

____-5 45 -240

1 -9 48 | -233

Since the remainder is not 0, then x+5 is not a factor of the polynomial

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3 years ago

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2 years ago

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Nostrana [21]

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Step-by-step explanation:

Comment if you need steps.

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1 year ago

Find the value of y. Picture below

olga2289 [7]

We have trapezoid with congruent legs.

30x + 11y = 2x + 3

28x +11y = 3

Also we have

30x + 11y = 12

We got 2 equations:

30x + 11y = 12

28x +11y = 3 (*-1) -----> -28x -11y = -3

30x + 11y = 12

-28x -11y = -3

2x = 9

x=9/2

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