All categories

3 years ago

If x = –3, then x2 – 2x + 1 = ?

Mathematics

2 answers:

Alina [70]3 years ago

7 0

-3(2)-2(-3)+1
-6+6+1
1

alukav5142 [94]3 years ago

5 0

Since I just realized that you meant x^2-2x+1, let me evaluate this step by step:

x^2-2x+1
((-3)^2)-(2(-3))+1
9-(-6)+1
9+6+1
16

Therefore, that would equal 16.

You might be interested in

What is a career that you can use for adding and subtracting fractions

xenn [34]

Answer:

A math teacher

Step-by-step explanation:

6 0

3 years ago

F(x+h) = (x+h)² + 3(x+h)^3 How would I distribute this?

Leno4ka [110]

Answer:

f(x + h) = 3x³ + x² + 9h²x + 3h³ + h² + 9hx² + 2hx

General Formulas and Concepts:

Order of Operations: BPEMDAS
Distributive Property
Expand by FOIL (First Outside Inside Last)
Combining like terms

Step-by-step explanation:

Step 1: Define function

f(x) = x² + 3x³

f(x + h) is x = x + h

Step 2: Simplify

Substitute: f(x + h) = (x + h)² + 3(x + h)³
Expand by FOILing: f(x + h) = (x² + 2hx + h²) + 3(x + h)³
Rewrite: f(x + h) = (x² + 2hx + h²) + 3(x + h)²(x + h)
Expand by FOILing: f(x + h) = (x²+2hx+h²) + 3(x² + 2hx + h²)(x+h)
Distribute/Expand: f(x + h) = (x²+2hx+h²) + 3(x³+3hx²+3h²x+h³)
Distribute 3: f(x + h) = (x²+2hx+h²)+(3x³+9hx²+9h²x+3h³)
Combine like terms: f(x + h) = 3x³+x²+9h²x+3h³+h²+9hx²+2hx

3 0

3 years ago

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost? Include a let statement

ZanzabumX [31]

Answer:

5$??.

Step-by-step explanation:

If a magazine was 5$, 25-5= 20. So then, 20÷4= 5. There fore an eraser costs 5$.

3 0

3 years ago

Read 2 more answers

HELLLPPPP ASAP. Explain how to find the product of 3/8 x 7/9. Use complete sentences in your answer.

stiv31 [10]

Answer:

7/24

Step-by-step explanation:

you times the numerators together and times the denominators together then you simplify

5 0

3 years ago

Read 2 more answers

Write the series in expanded form.

Digiron [165]

Answer:

It's B

Step-by-step explanation:

Just took this

4 0

3 years ago