Question

The square of a number is greater than 30 times the same number by 64. What is the number ?

Answer 1

Answer:

Let the no. be x

As per the question ☝️

X^2 = 30x + 64

X^2 - 30x -64=0

By splitting the middle term--

X^2 - 32x + 2x -64 = 0

x(x-32) + 2(x-32)=0

(x+2)(x-32)=0

Since no. can't be -ve

x=32