Answer:
The steps to doing this are as follows:
1. Identify the unknown and represent it with a variable.
2. Set up an equation or inequality using that variable.
3. Solve the equation or inequality to find an answer to the problem.
Answer:
-1,3i,-3i
Step-by-step explanation:
X^3+x^2=-9x-9
x^3+x^2+9x+9=0
x^2(x+1)+9(x+1)=0 factorize by taking x+1 common factor
(x+1)(x^2+9)=0
x+1=0 then x=-1
(x^2+9)=0 then x=+ 0r - 3i
Answer:
75 cheeseburgers and 86 french fries
Step-by-step explanation:
This is a guessing math problem so do a random amount and change amount of items to get closer to the answer
81 x 3 = $243
80 x 1.50 = $120
243 + 120 = 363 -354 = 9 dollars
we need nine less dollars so 9/1.5 = 6 so six more fries
86 x 1.5 = 129
75 x 3 = 225
129 + 225 = $354
Please mark brainliest
8 x 2 + 6x + 5=0
16 + 6x + 5=0
6x+21=0
6x+21-21=0-21
6x=-21
6x/6=-21/6
x=-7/2
