Question

100 points!!
Hey peeps!
Please help with question number 4 and 9, ASAP!
The fastest gets to be the Brainliest, if your answer is satisfying! ​

Answer 1

• 4....(k2- 14 ) x2 -2x -4 = 0

Sum of zeroes = -b/a

2/(k^2 - 14) = 1

k^2 - 14 = 2

k^2 = 2+14

k^2 = 16

k = √16

k = +/-4

Hope it helps you!

9......Polynomial   P(x) = x² - 6 x + a

Given  α and  β  are the roots.     To find a , if 3 α + 2 β = 20.  ---(1)

From the quadratic expression:

    α + β = 6       ---(2)

    and   α β = a  --- (3)

Multiply equation (2) by 2 and subtract from (1) to get:

    α = 20 -12 = 8

Substitute this value in(2) to get:   

   β = 6-8 = -2

Substitute these in (3) to get: a= α β = -16

Answer 2

Answer:

4....(k2- 14 ) x2 -2x -4 = 0

Sum of zeroes = -b/a2/(k^2 - 14)

= 1k^2 - 14 = 2k^2 = 2+14k^2

= 16k = √16k = +/-4

Hope it helps you!

9......Polynomial

P(x) = x² - 6 x + a

Given α and β are the roots. To find a ,

if 3 α + 2 β = 20. ---(1)

From the quadratic expression:

α + β = 6 ---(2)

and α β = a --- (3)

Multiply equation (2) by 2 and subtract from (1) to get:

α = 20 -12 = 8

Substitute this value in(2) to

get: β = 6-8 = -2

Substitute these in (3) to get:

a= α β = -16