Question

Please help
The factors of -18 are listed in the table …

Answer 1

x= -2 and 9

Explanation:

`x ^(2) + 7x - 18`

factorize it

- 18 = 2×3×3

TO MAKE IT 7

3×3=9

9-2 =7

`x ^(2) + 9x - 2x - 18x = 0`

x(x+9)-2(x+9)=0

x-2=0 ,x+9=0

x =2 x=-9