Solve by completing the square:
x^2+3x-9=0

A.) x=3√5/4 +3/2 or -3√5/4+3/2
B.) x=3√5/2 -3/2 or -3√5 /2 +3/2
C.) x=3√5 /2 -3/2 or -3√5/2 - 3/2
D.) x= 3 √ 5/4 -3/2 or -3√5 /4 -3/2

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

asadsadsad

step-by-step explanation:

i think the length is 12 and the width is 17