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3 years ago

For what value of x is the rational expression below equal to zero? x-1 (x-3)(x + 1)

Mathematics

1 answer:

IrinaK [193]3 years ago

8 0

Answer:

X=1, X=3 and X=-1

Step-by-step explanation:

Given the expression (X-1)(X-3)(X+1):

# To find the rational values of X, we equate the equation to zero:

$(X-1)(X-3)(X+1)=0\\\\X-1=0 \\\therefore X=1 \ \ \ \ ...i\\\\X-3=0\\\therefore X=3 \ \ \ \ \ ....ii\\\\X+1=0\\\therefore X=-1 \ \ \ \ \ ...iii$

Hence for the values of X=3,X=1 and X=-1 the expression equal 0

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Dahasolnce [82]

Answer:

Step-by-step explanation:

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y = 5x - 6

substitute in equ 2

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3 years ago

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Read 2 more answers

Please help me out please

Oxana [17]

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3 years ago

In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?

Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

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3 years ago

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SSSSS [86.1K]

Answer:

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Step-by-step explanation:

(4x)+(3x+13)=90

if you look at the beam, it includes a 90 degree angle.

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distributive property

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divided both sides by 7 to isolate x

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4(x) is the larger angle

6 0

3 years ago