Use the FOIL method to find the product below. (x + 5)(x2 – 3x)
O A. x2 + 5x2 - 15x
B. x3 + 5x2 - 15
C. x3 + 2x2 - 15
D. x2 + 2x2 - 15x

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

actually what is a question i don't understand

85.3-64 = 21.3

so laura has already added 85.3 grams of chocolate powder and she has gone over the amount specified in the recipe by 21.3 grams

hope i ! have a great  day!