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2 years ago

Rút gọn (x-4) (x-3) -x(x+5) +82

Mathematics

1 answer:

WINSTONCH [101]2 years ago

5 0

Answer:

-12x + 94

Step-by-step explanation:

Simplify:

$\left(x-4\right)\left(x-3\right)-x\left(x+5\right)+82$

$=x^2-7x+12-x\left(x+5\right)+82$

$=x^2-7x+12-x^2-5x+82$

$=x^2-x^2-7x-5x+12+82$

$=-7x-5x+12+82$

$=-7x-5x+94$

$=-12x+94$

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3 years ago

Convert the complex number z = -12 + 5i from rectangular form to polar form.

Paha777 [63]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Which fraction has the value that's equal to 3/4

mamaluj [8]

One of the fractions that’s equal to $\frac{3}{4}$ is $\frac{12}{16}$

<u>Solution:</u>

Given that , we have to find fractions which has the same value as that of the fraction $\frac{3}{4}$

Now, we know that, there are several fractions with values equal to $\frac{3}{4}$

To find them, just multiply the numerator and denominator by the same number.

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Therefore, $\frac{6}{8}$ is equal to $\frac{3}{4}$

We can do the same with 4, to get $\frac{12}{16}$ , or any other number beyond that.

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3 years ago

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MakcuM [25]

Answer:

Step-by-step explanation:

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3 years ago