5 times a number is 14 less than the square of that number. Find the positive solution.

PLEASE ANSWER

Write the word problem in algebraic form:

n2 -14 = 5n

Write as a quadratic:

n2 - 5n - 14 = 0

Factor:

(n+2)(n-7) = 0

Solve:

n+2 = 0    =>   n = -2

n-7 = 0    =>   n = 7

positive solution is 7.   (14 less than 72 = 35 which is also 5 times 7)

The positive solution is 7.

Step-by-step explanation:

Let the number be x, then we have:

5x = x^2 - 14

x^2 - 5x - 14 = 0

(x - 7)(x + 2) = 0

x =7, -2.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.