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Aleksandr-060686 [28]
3 years ago
11

What is the value of f(2) the function f(x)=4x^2-5x+1

Mathematics
1 answer:
snow_tiger [21]3 years ago
7 0

Answer: f(2)=7

Step-by-step explanation:

F(2)= 4x2^2-5x2+1

4x4-10+1

6+1=7

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F(x) = (x - 2)²(x+1)​
Inessa [10]

(x - 2)²(x+1)​

(x-2)(x-2)

multiply the two brackets together

(x)(x)=x^2

(x)(-2)=-2x

(-2)(x)=-2x

(-2)(-2)=4

x^2-2x-2x+4

x^2-4x+4

(x^2-4x+4)(x+1)

multiply the brackets together

(x^2)(x)=x^3

(x^2)(1)=x^2

(-4x)(x)=-4x^2

(-4x)(1)=-4x

(4)(1)=4

x^3+x^2-4x^2-4x+4x+4

Answer:

x^3-3x^2+4

5 0
3 years ago
Can someone help with numbers 1 and 2 for both of them tell me the answer and how you get it
Pani-rosa [81]

Answer:

Here a = 20,, b= 8

Step-by-step explanation:

Using Pythagoras theorem,

a^2 + 15^2 = 25^2 ,, b^2 + 6^2 =10^2=100

8 0
3 years ago
Read 2 more answers
Which answer is it I’m doing my quiz rn
anyanavicka [17]

Answer:

10

Step-by-step explanation

3 x 4 = 12

8 + 12 = 20

20 / 2 = 10

8 0
3 years ago
Read 2 more answers
Please help!!!! (don’t comment for free points, this isn’t the place)
Allushta [10]

tan 44 = h/ x

x = 15 ft * sin 26

so

h = x * tan 44

= (15 ft * sin 26) (tan 44 )

so the anser is D

hope this would help you

5 0
4 years ago
Read 2 more answers
If the sum of a number and seven is doubled, the result is one less than the number. find the number
lawyer [7]
(n + 7)2 = n - 1
2n +14 = n - 1
2n - n +14 = n - n - 1
n + 14 -14 = -1 - 14
n = -15
(-15 + 7)2 = -15 - 1
(-8)2 = -16
-16 = -16
7 0
3 years ago
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