Question

The square of a number is less than its 27 times by 180 . Which of the following can be the number ? a) 12 b) 16 c) 17 d) 18​

Answer 1

Answer:

Number is 12

Step-by-step explanation:

27x - x^2 =180

x^2 - 27x + 180 = 0

x^2 - 12x - 15x + 180 = 0

x(x-12) -15(x-12) = 0

(x-12)(x-15) = 0

x = 12 & 15