Question

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

Answer 1

Answer:

x= -2 and 9

Step-by-step 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