Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----
x^2+x = 2x+79
x^2-x-79 = 0
------
This quadratic does not have an integer solution.</span>
<span>A perfect power is a positive integer that can be expressed as an integer power of another positive integer.
More formally, n is a perfect power if there exist natural numbers m > 1, and k > 1 such that

.
Sometimes, some fractional or decimal radicants are not perfect power, yet they evaluate to a terminating decimal or recalling decimal.
Example: 6.25 is not a perfect power, but

.
Therefore, </span><span>A radical whose radicand is not a perfect power is a rational number</span> SOMETIMES.
It was greater than 16.53 whether interest was compounded daily or monthly
Answer:
12-4=8+7=15
Step-by-step explanation: DO 12-4 then add it by 7.... Self Explanitory
Go to the website symbolab.com
or Mathpap.com and that should help give you your answer