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MatroZZZ [7]
2 years ago
12

If the function f(x) = 4x^2 - x + 3, evaluate f(-2)

Mathematics
1 answer:
ira [324]2 years ago
5 0

Answer: 21

Step-by-step explanation: f(-2) = 4· (-2)²-(-2) + 3 = 4·4 +2 +3

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2 years ago
Alberto uses the steps below to solve the equation One-half x minus 3 equals 7. Step 1: One-half x minus 3 plus 3 equals 7 plus
natka813 [3]

Answer:

Identity property of multiplication

Step-by-step explanation:

From step 5:

1x = 20

Here, to solve for x so that the variable x stands alone, Alberto uses the identity property of multiplication, which justifies what he has in step 6.

Step 6:

x = 20

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7 0
2 years ago
How to solve 10(x+4)(x-4)
IceJOKER [234]

Answer:

1 Use Difference of Squares:

a^2-b^2=(a+b)(a−b).

10(x^2-4^2)

2 Simplify 4^2 to 16

10(x^​2​​ −16)

3 Expand by distributing terms.

10x^​2 −160

Step-by-step explanation:

Hope dis helps and pls  mark me as brainlist!!!

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4 0
3 years ago
Please help me<br><br> ( - 3 ) ( a + x ) , if a + 8, x = - 10
BARSIC [14]

Answer:

6

Step-by-step explanation:

-3 x (8 + [-10]) =

-3 x (8 - 10) =

-3 x -2 =

6

HOpe that helps!

7 0
3 years ago
Read 2 more answers
Negative X over 4 minus 6 is greater to or equal to -8
stiv31 [10]

Answer:


Step-by-step explanation:

-x/4 - 6 ≥ -8.

What was the end goal of this problem?

5 0
3 years ago
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