3 years ago

Solve pls for the function -2x²+x+1 find f(3)

Mathematics

1 answer:

castortr0y [4]3 years ago

3 0

Answer:

f(3) = -14

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -2x² + x + 1

f(3) is x = 3

Step 2: Evaluate

Substitute: f(3) = -2(3)² + 3 + 1
Exponents: f(3) = -2(9) + 3 + 1
Multiply: f(3) = -18 + 3 + 1
Add: f(3) = -15 + 1
Add: f(3) = -14

You might be interested in

Can someone help me with this one

bonufazy [111]

Answer:

$x(2x+1)(x-2)$

Step-by-step explanation:

$x(2x^2-3x-2)$

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

$x[2x(x-2)+1(x-2)]$

$x(2x+1)(x-2)$

3 0

3 years ago

Can someone help me out

Nastasia [14]

Answer:

Step-by-step explanation:

Surface area is the sum of the faces of all sides, so find the area of all sides and add

7 0

3 years ago

Read 2 more answers

Amanda is 15 years old. She has two sisters, Britney, who is 12 years old, and Caitlin, who is the youngest. Amanda’s age is equ

VashaNatasha [74]

Answer:

c. 7

Step-by-step explanation:

Amanda is 15. 15 is 3 times the age difference so you know the age difference is 5. Britney is 12 so subtract 5 and thats 7.

4 0

2 years ago

Put in the corrtect sign.< > = 615,230 641,380

Mariana [72]

Answer:

615,230 < 641,380

Step-by-step explanation:

Hope it helps!

6 0

3 years ago

Read 2 more answers

100 is smaller than 110 by? Thanks !!!

Vaselesa [24]

Answer 10 because 110 minus 100 is ten

5 0

2 years ago

Read 2 more answers