Question

if one root of the equation zx²+ax+6=0 is 2 them a=?​

Answer 1

Answer:

2x^2 + ax + 6 = 0

2(2)^2 + a(2) + 6 = 0

2(4) + 2a + 6 = 0

8 + 2a + 6 = 0

2a + 14 = 0

2a = -14

a = -7

please mark as brainliest

Answer 2

Step-by-step explanation:

$z {x}^{2} + ax + 6 = 0 \\ z {2}^{2} + 2a+ 6 = 0 \\ z {2}^{2} + 6 = - 2a \\ 4z + 6 = - 2a \\ \frac{4z + 6 }{ - 2} = a \\ a = - 2z + 3 \\ a = 3 - 2z$

.... Hope this will help...