Answer:
No real solutions.
Step.-by-step explanation:
Step 1: Subtract 2x from both sides.
For this equation: a=1, b=-2, c=20
Step 2: Use quadratic formula with a=1, b=-2, c=20.
Answer:
D
Step-by-step explanation:
Answer: 
Step-by-step explanation:
ALRIGHT ARE YOU READY FOR EPIC MATH TIME?
because i know i am. so lets get this bread.
WATCH: we have 
interesting... that first character is called pi. maybe i should have said, "lets get this pi".
so now lets do some algebra. i am going to work from right to left. lets multiply 6r by 2. that gives us 12r. now we have... 
WE ARE MAKING EPIC PROGRESS, AREN'T WE?
lets multiply 12r by 3r. then we have....

notice how i multiplied 12 by 3 and also r by r (which gives 36 and
respectively)
so your simplified expression is: 
Answer:
5.3 s
Step-by-step explanation:
a) since the height is defined by a function, we can find the turning point of the quadratic , which is where the ball will have the highest point. The turning point is where the gradient is equal to zero so we differentiate first

When using factoring by grouping, the replacement terms will both have the same sign of the original middle term. If the last term is negative, then the signs of the factors will have one of each sign with the “stronger” number (the larger absolute value) matching the middle term. hope this helps