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Mashcka [7]
3 years ago
9

I have to match each expression to its equivalent form. Please help me out

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

x^2 - 12x + 37

x^2 + 16

x^2 + 6x + 34

Step-by-step explanation:

Let's expand the first one:-

(x - 6 + i)(x - 6 - i)

= x^2 - 6x - ix - 6x + 36 + 6i  + ix - 6i - i^2

= x^2 - 12x  -ix + ix - 6i + 6i  + 36 - (-1)

= x^2 - 12x + 37 (answer).


(x + 4i)(x - 4i)

= x^2 + 4ix - 4ix -16 i^2

= x^2 + 16   (answer).


(x + 3 + 5i)(x + 3 - 5i)

= x^2 + 3x - 5ix + 3x + 9 - 15i + 5ix  + 15i - 25 i^2

= x^2 + 6x + 34. (answer).

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Rudiy27
1/2, 2/3, 3/4, 4/5,
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3 years ago
Look at the figure, . Find the values of ​x and y. x = 5, y = 7 x = 6, y = 8 x = 6, y = 9 x = 7, y = 10
Colt1911 [192]

Answer:

x = 6, y = 9

Step-by-step explanation:

One of the properties of a parallelogram is

The diagonals bisect each other, hence

2x = y + 3 → (1)

2y = 3x → (2)

Rearrange (1) in terms of y by subtracting 3 from both sides

y = 2x - 3 → (3)

Substitute y = 2x - 3 into (2)

2(2x - 3) = 3x ← distribute left side

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Substitute x = 6 into (3) for value of y

y = (2 × 6) - 3 = 12 - 3 = 9

Hence x = 6 and y = 9

5 0
3 years ago
I need help <br>I need help fast​
german

Answer:

<STP=105°

Step-by-step explanation:

two interior angles equal one opposite exterior angle therefore

7x+6+7x+1=15x

group like terms

6+1=15x-7-7

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6 0
3 years ago
Mai wants to make a scale drawing of her kitchen. Her kitchen is a rectangle with length 600 cm and width 200 cm. She decides on
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240m, 80m
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Mark brainliest please
5 0
3 years ago
Help- I'll give brainliest&lt;3
kap26 [50]

Answer:

The steps are to first find the samllest multiple for the denominator and then cross multiply the numerator with the other denominator nd these you go.

Example : number one is 3/20.   LEARN  

Step-by-step explanation:

Okay fractions are EEEZZZ

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