3 years ago

Evaluate 8x^2 + 2x + 5, when x =7

Mathematics

1 answer:

bixtya [17]3 years ago

3 0

Answer:

432

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

8x² + 5x + 5

x = 7

Step 2: Evaluate

Substitute in x: 8(7)² + 5(7) + 5
Evaluate exponents: 8(49) + 5(7) + 5
Multiply: 392 + 35 + 5
Add: 427 + 5
Add: 432

You might be interested in

A number plus three and seven-tenths Write as an algebraic expression

jasenka [17]

Answer:

x+6.3

Step-by-step explanation:

x+6.3

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

4 0

3 years ago

The local bakery uses 1.75 cups of flour in each batch. The bakery used 5.35 cup of flour this morning. If there are 5 dozen coo

mr Goodwill [35]

5 dozen = 5x12 = 60 per batch
60x3 =180 cookies in total.

6 0

3 years ago

Solve x and y x/2 + y/3 = 4 7x - y = 12

Anestetic [448]

Answer: here the answer

Step-by-step explanation:

3 0

3 years ago

7=5y - 13 - y Pls answer fast

Agata [3.3K]

20 = 4 y
Y =5
Hope this helps

8 0

3 years ago

Read 2 more answers

4. Mrs. Johnson informed her students that their exam will have at most 25 questions.

Ivan

Answer:

The correct answer is 20 questions she took some off.

Step-by-step explanation:

7 0

3 years ago