Question

I. Factorise the following
5x² + 5x -150​

Answer 1

X=-6,5

5x2 + 5x-150=0

From here take 5 as common

x2+x-30=0

x2+[6-5]x-30=0

x2+6x-5x-30=0

X[X+6]-5[X+6]=0

[X+6][x-5]=0

X=-6,5.