Answer:
(x-4.34)(x+1.84)=0
Step-by-step explanation:
2x^2 -5x-16=0
delta=

x1,2=

$85 ÷ 5 = 17
You have to sell 17 more friendship bracelets to get $85
Answer: x=−3 or x=13
Step-by-step explanation:
Step 1: Subtract 39 from both sides.
x2−10x−39=39−39
x2−10x−39=0
Step 2: Factor left side of equation.
(x+3)(x−13)=0
Step 3: Set factors equal to 0.
x+3=0 or x−13=0
x=−3 or x=13
Answer: n-5
Step-by-step explanation:
Answer:
Yes it is simplified
Step-by-step explanation:
2x^2 is not a like term to 2x because 2x does not have an exponent. Therefore, you cannot add 2x to 2x^2. So it is as simplified as it can be at this point