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serg [7]
3 years ago
7

Factor x2 - 2x + 3 I have no idea and no one else has done it

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0

Answer:

prime

Step-by-step explanation:

x^2 - 2x + 3

What two numbers multiply to 3 and add to -2

There are none so this cannot be factored in the real numbers

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For which pair of numbers is 4 a common factor.
dolphi86 [110]

Answer: 40 and 52

Step-by-step explanation:

40 =4 \times 10, 52=4\times 13, so both 40 and 52 have a factor of 4.

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2 years ago
How do I make 3.0035 into a fraction?
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Make 3.0035 into a proportion, or over 1000000, to make it a whole number. 30035/1000000.
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8 0
3 years ago
2(1/3x-5)=5/3x-11<br> can somebody help me ASAP
maw [93]

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Step-by-step explanation:

6 0
3 years ago
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The length of a rectangle is 5 inches more than its width, x. The area of a rectangle can be represented by the equation x 2 + 5
Arada [10]

Answer:

Width = 15 inches             Length = 20 inches

Step-by-step explanation:

The area of a rectangle is calculated using the following formula.

A = Lx   (1)

Where L is the length and x is the width of the rectangle

In this case we know that the length of the rectangle is 5 inches greater than its width. This means that:

L = x + 5   (2)

Also The area of a rectangle can be represented by the equation x^2 + 5x = 300

so to find the width x we solve the equation

x^2 + 5x -300=0   (3)

For an equation of the form ax ^ 2 + bx + c = 0 the quadratic formula is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

In this case note that:

a=1\\b=5\\c=-300

Then:

x=\frac{-5\±\sqrt{(5)^2-4(1)(-300)}}{2(1)}

x=\frac{-5\±\sqrt{25+1200}}{2}

x=\frac{-5\±\sqrt{1225}}{2}

x=\frac{-5\±35}{2}

x_1=\frac{-5+35}{2}  →  x_1=15

x_2=\frac{-5-35}{2}  →   x_2=-20

We take the positive solution x=15\ in

Now we use equation (2) to find L

L = x + 5

L = 15 + 5

L = 20\ in

8 0
4 years ago
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