Question

40+ 3x - x² =
Factorise

Answer 1

Step-by-step explanation:

-x²+3x +40= 0

chnge the sign

we get

x² -3x -40=0

factorise this

we get

x ²+5x -8x -40=0

make a pair n take common

x (x +5) - 8 ( x + 5 )

(x + 5 ) ( x- 8 )