Solve the following for x:

2 х2 + 9x + 9 = - 1

х=4 or x=5

Ox=-5/2 or x=-2

Ox=2/5 оr x=-2

х=2 or x=9

Step-by-step explanation:

2x (squared) + 9x+9=-1

2x (squared) + 9x+9+1=0

2x (squared) + 9x+10=0

multiply the coefficient of x and 10=2x10=20

2x (squared) + 9x+10=0

look for two numbers that when added gives 9and when multiplied gives 20

2x (squared) + 5x+4x+10=0

(2x (squared) + 5x) + (4x+10) = 0

find the number and letters that are common in the equations

x (2x+5) + 2 (2x+5) = 0

(x+2) (2x+5) = 0

x+2=0

collect like terms

x=0-2

x=-2

2x+5=0

collect like terms

2x=0-5

2x=-5

divide both sides by 2

2x/2=-5/2

x=-5/2

so x=-2 and - 5/2