A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
1. find equation
general solutions are:

for P(0,-11)

⇒

for p(1,-13)

and

solve for a and b:

the total equation is now:

To find the x-intercept set y=0 and solve for x
Answer:
'Twice the sum of a number and 5' can be translated into variable expression such as:
Step-by-step explanation:
Given the phrase
<em>Twice the sum of a number and 5</em>
First, let us breakdown the English Phrase
Let the number be = n
The sum of a number 'n' and 5 = n + 5
now, twice the sum of a number and 5 can be determined by multiplying (n+5) with 5.
Thus,
'<em>Twice the sum of a number and 5</em>' can be translated into variable expression such as: