Find S15 for the geometric series 72 + 12 + 2 + 1/3 +…
1 answer:
You might be interested in
<h3>The equation is:</h3><h3>
</h3><h3>The number is 3 or 4</h3><h3><em><u>Solution:</u></em></h3>
Given that,
7 added to the square of a number is equal to 7 times the number, minus 5
Let "x" be the unknown number
From given,
7 added to square of x = 7 times the x minus, 5
Solve the above equation
Split the middle term
We have two solutions
x - 3 = 0
x = 3
And
x - 4 = 0
x = 4
Thus number is 3 or 4