Question

Factorise 4u2 +8u
2√3 x2 -5x+√3​

Answer 1

1.4u2+8u=0

4u(u+2) =0

therefore,

4u= 0 or (u+2) =0

u= 0/4= 0 or u= -2

2. 2√3x2-5x+√3=0

2√3x2-6x+1x+√3=0

2√3x2-2√3•√3x+1x+√3= 0

2√3x(x-√3) +1(x+√3)

(x-√3) (2√3x+1) = 0

x= √3 or 2√3x= -1

x= √3 or x= -1/ 2√3