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Lubov Fominskaja [6]

3 years ago

11

(04.02)

1 answer:

quester [9]3 years ago

6 0

I believe it’s (1.5,-0.5)
Good luck

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Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

$q(a) = {a}^{2} + 3a + 4$

Multiply sides by -2 :

$- 2q(a) = - 2( {a}^{2} + 3a + 4)$

$- 2q(a) = - 2 {a}^{2} - 6a - 8$

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

$q(a + 1) = ({a + 1})^{2} + 3(a + 1) + 4 \\$

$q(a + 1) = {a}^{2} + 2a + 1 + 3a + 3 + 4 \\$

$q(a + 1) = {a}^{2} + 5a + 8$

_________________________________

Step (3)

$q(a + 1) - 2q(a) =$

${a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 = \\$

$- {a}^{2} - a = - a(a + 1)$

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0

3 years ago

I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER!!

Andreas93 [3]

Answer:

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8 0

2 years ago

What is the value of the dicsriminant of x^2-7x+4?

Aleks [24]

Answer:

33.

Step-by-step explanation:

x^2 - 7x + 4.

The discriminant of the above

= b^2 - 4ac

= (-7)^2 - 4*1*4

= 49 - 16

= 33.

8 0

2 years ago

Which of the following is the solution set of -2|x| < -8

liraira [26]

-2|x|<-8

(-2|x|)/-2<-8/-2

|x|>4

x>4 or x>-4

Solution: ] -♾️ , -4 [ U ] 4 , + ♾️ [

PLEASE GIVE BRAINLIEST

6 0

2 years ago

What is the answer for:<br> 1÷6 + √3

NikAS [45]

1.89871747424 heres the answer

3 0

2 years ago

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