Please help with these problems!
A) a^2 - 8b^2 + 2c^2 + 2ab + 3ac
B) x^2 - 4y^2 + 3x - 2y + 2
C) 2x^2 + xy - y^2 + 3x + 1
D) 2x^2 - 5xy - 3y^2 - 14y - 8

b) 36

step-by-step explanation:

18 times 2 is 36

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

you should talk someone who owns the website about it. you did not deserve to have all that hard work and time taken away. id watch videos of little puppies to cool you down, and maybe some nacho cheese doritos.