Question

( begin{array}{l}qquad begin{array}{rl} & =1 84-2 gamma-2 gamma^{2} & 9 x^{2}-12 x+4 = & -2 x^{2}-2 gamma+84end{array} & =9 x^{2}-6 x-6 x+4 = & -2 x^{2}-14 x+12 x+84 = & -2 x(x+7)+12(x+7) = & (x+7)(-2 x+12)end{array}=begin{array}{l}5 x(3 x-2)-2(3 x-2) (3 x-2)^{2}end{array} )

# Factarise 84-201-22 982_128+4

Solution