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yKpoI14uk [10]
2 years ago
14

The quadratic function f(x) = x^2 + 8x + 17 is equal to zero when x - a + bi

Mathematics
1 answer:
aleksley [76]2 years ago
3 0

Answer:

x

2

−

8

x

−

17

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values

a

=

1

,

b

=

−

8

, and

c

=

−

17

into the quadratic formula and solve for

x

.

8

±

√

(

−

8

)

2

−

4

⋅

(

1

⋅

−

17

)

2

⋅

1

Simplify.

Tap for more steps...

x

=

4

±

√

33

The result can be shown in multiple forms.

Exact Form:

x

=

4

±

√

33

Decimal Form:

x

=

9.74456264

…

,

−

1.74456264

…

Step-by-step explanation:

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Alexxandr [17]

Answer:

4x^2 -34x+42

Step-by-step explanation:

(4x-6)(x-7)

FOIL

first 4x*x = 4x^2

outer 4x*-7 = -28x

inner : -6 *x = -6x

last : -7*-6 = 42

Add them together = 4x^2 -28x-6x +42

                                =4x^2 -34x+42

7 0
3 years ago
Help with these, if theyre right, ill give brainliest
adelina 88 [10]

Answer:

q1: yes

q2: no

Step-by-step explanation:

2(5)+10(1)=20

10+10=20

20=20

(5)+(1)=6

5+1=6

6=6

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8=1+3

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3 0
3 years ago
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You borrow $3,000 from the bank to buy your first car. The interest rate is 5%. How much money will you owe the bank at the end
melamori03 [73]

Answer: 3000 multiplied by 0.05

and u get  you get the 0.05 by dividing 5 by 100.

Step-by-step explanation:

8 0
3 years ago
Which of the following numbers is written in scientific notation?
nata0808 [166]

Answer:

i think is b

Step-by-step explanation:

8 0
3 years ago
Is 30/12 and 40/16 equivalent?
Flura [38]
30/12 in simplest form is 5/2 (cause 6 * 5 = 30 and 6 * 2 = 12)
40/16 in simplest form is 5/2 (cause 8 * 2 = 16 and 8 * 5 =40)
so yes they're equivalent;
30/12 = 40/16
Hope that helps :D have a nice day!
5 0
3 years ago
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