Answer:
B. (
+7)(x+2)
Step-by-step explanation:
The greates common factor between 7 and 14 is 7 so you know that one of the terms is going to be 7....but what times 7 equals 14...2
So we know that in one set of parentheses its going to be (something +2) and in another (something +7)
Well if we know that one is going to be 2, how do we go from 2 to 2.....2 times equals 
So now we know that one set of parentheses is going to be (something + 2) times (+7)
So lastly, we have to find out how to get 
but since we already have a in the second set of parentheses all we have to do is put a x in the first set because x times 
Hope this helps!
Answer:
C. quadratic
Step-by-step explanation:
You can rightly guess that ballistic motion is described by a <em>quadratic</em> function.
Differences of the y-values are 5.75, 3.25, 0.75, -1.75, -4.25.
First differences are not constant, but form a linear sequence that decreases by 2.5 between each pair. Since second differences are constant, the function is described by a 2nd-degree polynomial function, a <em>quadratic</em>.
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<em>Comment on other function types</em>
Linear functions have constant first differences. Exponential functions have exponentially increasing first differences. Logarithmic functions have first differences that increase by smaller and smaller amounts.
Hello,
x²+5x-6=0
Δ=5²+4*6=49=7²
x=(-5+7)/2 or x=(-5-7)2
==>x=1 or x=-6
Answer B
