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3 years ago

If a = 2, what is the simplified form of the expression below? (x − a)(x^2 +ax + a^2)

Mathematics

2 answers:

dem82 [27]3 years ago

6 0

Answer:x^3+2x^2+4x-ax^2-2ax-4a

Step-by-step explanation:

Ksivusya [100]3 years ago

6 0

Answer:

x³+8

Step-by-step explanation:

(x − a)(x^2 +ax + a^2)

a=2

Substitute a for 2 in the algebraic expression

(x − 2)(x^2 +2x + 2^2)

(x − 2)(x^2 +2x + 4)

Multiply (x^2 +2x + 4) by (x-2)

x(x^2 +2x + 4)-2(x^2 +2x + 4)

x³+2x²+4x-2x²-4x-8

Collect like terms

x³+2x²-2x²+4x-4x+8

x³+8

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Please help!!!! If f(1) = 2 and f(n+1) = f(n)^2 – 3 then find the value of f(3).

Black_prince [1.1K]

Answer:

The value of f(3) is -2.

Step-by-step explanation:

This is a recursive function. So

$f(1) = 2$

Now, we find f(2) in function of f(1). So

$f(1+1) = f(1)^2 - 3$

$f(2) = f(1)^2 - 3 = 2^2 - 3 = 1$

Now, with f(2), we can find the value of f(3).

$f(2+1) = f(2)^2 - 3$

$f(3) = f(2)^2 - 3 = 1^2 - 3 = -2$

The value of f(3) is -2.

4 0

2 years ago

B. f(x) = -1x - 4; Find f(-3)

Margaret [11]

Answer:

f(-3) = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Functions
Function Notation

Step-by-step explanation:

Step 1: Define

Identify

f(x) = -1x - 4

Step 2: Evaluate

Substitute in x [Function f(x)]: f(-3) = -1(-3) - 4
Multiply: f(-3) = 3 - 4
Subtract: f(-3) = -1

4 0

2 years ago

Plugin y=-5 into either equation and solve for x -6x-8y=-20 or x+y=5

nalin [4]

Answer:

x = 10

Step-by-step explanation:

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2 years ago

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hram777 [196]

Answer:

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Step-by-step explanation:

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2 years ago

A photographer buys a new camera for $1350. Every year the camera decreases in value by 10%.

bagirrra123 [75]

Answer:

A(t)=1350(0.9)^t

i hope this helps :)

4 0

2 years ago