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victus00 [196]
3 years ago
9

Factor each expression completely. a. X^2- X-72

Mathematics
1 answer:
Alinara [238K]3 years ago
5 0

answer: x^2 = -72 so x is i*6\sqrt{2} or -i*6\sqrt{2}i∗62or−i∗62

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The sum of two numbers is 16. One number is 3 times the other. Find the numbers.
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Answer:

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Step-by-step explanation:

X + Y = 16

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Can you write the equation for a circle if the given point does not lie on the circle? Explain .
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Which of the following is correct?
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2 years ago
Which expression is equivalent to 4 (3n - 5)?
mart [117]

Expression 4 (3n - 5) is equivalent to <em><u>C: 12n - 20</u></em>

<h3>Further explanation </h3>

Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division.

The main composition of algebraic expressions are:

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algebraic forms separated by arithmetic operations

consists of one phrase (monomial) to many phrases (polynomial)

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  • 3. constants

is a fixed value, can be a number

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There are several properties in integer multiplication operations

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a x b = b x a

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ax (bxc) = (axb) xc

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ax1 = 1 x a = a

  • 5. distributive  property

*<em> addition </em>

ax (b + c) = axb + axc

* <em>substraction </em>

ax (b-c) = axb - axc

We can use distributive  property  of <em>substraction   </em>to solve the problem

\displaystyle =4(3n-5)\\\\=4x3n - 4x5\\\\=12n-20

"Equivalent to" means having the same value.

From the answer choices , which produce the same expression is C. 12n-20

<h3>Learn more </h3>

6 squared divided by 2 (3) +4

brainly.com/question/376058

an algebraic expression

brainly.com/question/20988

brainly.com/question/2285423

Keywords: PEMDAS, arithmetic operations, multiply, Parentheses, equivalent to

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3 years ago
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