Question

X square+3ax+2a have a factor x-2,then 'a '=

Answer 1

Hola there,

Given
=> x² + 3ax + 2a

Factor given => x - 2 = 0

=> x = 2

So,

=> (2)² + 3(2)a + 2a = 0

=> 4 + 6a + 2a = 0

=> 8a = -4

=> a = -1/2. ....Ans

Hope this helps....:)

Answer 2

if x-2 then x= 2
x²+3ax+2a ........ 2×2+3a2+2a. ............. 4+6a+2a ............ 4+8a. ......................... -4/8=a a= o.5. ,................. sorry my mobile is hanging