Question

p(x) =6x2-3-7x how does 9x come
See above​

Answer 1

Answer:bro they broke -7x into -9x +7x

Step-by-step explanation:

Answer 2

Answer:The 9 has come from splitting the middle term.

Step-by-step explanation:

p(x)=6x²-3-7x

p(x)=6x²-7x-3

     = 6x²-9x+2x-3 (by splittinig the middle term -7x since -9x+2x=-7x)

     = 3x(2x-3)+1(2x-3)

     = (2x-3)(3x+1)

On equating both expressions with 0

x=$\frac{3}{2}$ and x=$\frac{-1}{3}$

Both of these are the zeroes of p(x) since a quadratic polynomial has two zeroes.