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telo118 [61]
3 years ago
12

What are the zeros of the polynomial function?

Mathematics
1 answer:
Serga [27]3 years ago
4 0
First compute the discriminant delta:
9^2-4*1*20=1. 
Using the quadratic formula, we get the solutions:
\frac{-9-1}{2} =-5\\ \frac{-9+1}{2}=-4
the solutions are then -4 and -5. 
You might be interested in
For the following exercises, evaluate the function f at the values f(−2), f(−1), f(0), f(1), and f(2)
MatroZZZ [7]

Answer:

See below.  <u><em>I assume that (x) = 8x2 - 7x + 3 is really (x) = 8x^2 - 7x + 3</em></u>

Step-by-step explanation:

Substitute the value of x given in f(x) into the equation f(x) = 8x^2 - 7x + 3

For example, f(0) would be f(0) = 8(0)^2 - 7(0) + 3.  f(0) = 3

f(-2) would be f(-2) = 8(-2)^2 - 7(-2) + 3.  

                                =   8*4  + 14 +3

                                = 32 + 17        therefore      f(-2) = 49

<u>x</u> <u>f(x)</u>

-2 49

-1 18

0 3

1 4

2 21

4 0
2 years ago
William is 3 years older than Charmaine.The sum of 3 times charmaines age and 2 times Williams age is 76.How old are William and
astra-53 [7]
Charmaine= x
William=x+3
3 times Charmaine = 3x
2times William = 2x+6
5x+6=76
5x=76-6
5x=70
X=14
Charmaine is 14
William is 3 years older so is 17

Check:
17x2= 34
14x3=42
34+42=76

So Charmaine is 14
William is 17
4 0
2 years ago
A piece of machinery depreciates $5000 the first year,
eimsori [14]

Answer:

A- $3500

Step-by-step explanation:

The depreciation rate is $300

$5000, $4700, $4400

$300 x 3 = 900

$4400 - 900 =

$3500.

4 0
3 years ago
Can someone help me solve for a ?
Liono4ka [1.6K]

Answer:

a=6 or -6

Step-by-step explanation:

Solve the determinant to get a²-36=0

(a-6)(a+6)=0

a=6 or -6

4 0
3 years ago
If g = -6<br>-3g - 2 -(-4g + 10)
deff fn [24]
-3(6)-2-(-4(6)+10)
-3(6)-2-(-24+10)
-18-2--14
answer is -6
5 0
2 years ago
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