Answer: (4x+5) • (2x-1)
Explanation:
Sort them in COLUMS, which is going down. There will be four sections, like this ...
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There will be four groups with three each, like this :)
<u><em>Solution:</em></u>
A. 
Hope this helps!
The answers are x=0 and y=1
When the rocket hits the ground, its height will be zero.
Thus, set <span>y = -0.06x^2 + 10.1x + 5 equal to zero and solve for x:
</span>-0.06x^2 + 10.1x + 5 = 0
To remove the decimal fractions, divide all 4 terms by -0.06:
x^2 - 168.333x - 83.333 = 0
Alternatively, apply the quadratic formula:
a= -0.06, b= 10.1, c = 5
-10.1 plus or minus sqrt( 10.1^2 - 4(-0.06)(5) )
The formula is x = ------------------------------------------------------------------
-0.12
Evaluate this to obtain the suitable value of x. Note that this x must be positive, since it represents the measure of distance.
