Question

if 4 times a number is increased by 6, the result is less than 15 than the square of the number. find the number​

Answer 1

n = 7

n = -3

Explanation:

4n+6 = n²-15

4n = n² - 21

n² - 4n - 21 = 0

(n-7)(n+3) = 0

n = 7

n = -3