Question

(xiv) 5x^2 - 4x + 2+k (4x² - 2x - 1) = 0​

Answer 1

Answer=

k= -9/10

Step-by-step explanation:

Given

5x^2 - 4x + 2+k (4x² - 2x - 1) = 0

To find the value of k.

By using Factor method.

0 of x+1=-1

5x^2 - 4x + 2+k (4x² - 2x - 1) = 0

5(-1)^2 - 4(-1) + 2+k (4(-1)² - 2(-1)- 1) = 0

5+4+2k (4+2-1) =0

9+2k × 5 =0

2k × 5 = -9

k= -9 / 2×5

k= -9/10