Question

factorise 2x^2+42x+216​

Answer 1

Answer:

Hope IT will help you

Step-by-step explanation:

2x^2+5/6x+1/12= =take the LCM =_24x^2+10x+1____________ 12 =1/12(24x^2+10x+1) by slitting the middle term =1/12(24x^2-6x-4x+1) =1/12(6x-1)(4x-1)

Answer 2

Answer:

2x^2+42x+216= 0

x^2 + 21x+108=0

x^2 +12x+9x+108 =0

x(x+12) +9 (x+12) =0

(x+12) (x+9) = 0

(x+12) =0 and (x+9)=0

So, x= -12 or x= -9