Question

25. Find the number whose square is 3 less than 4
times the number.

Answer 1

1 or 3

Explanation:

hope this helps:)

Answer 2

`\huge\boxed{\sf x =\{3,1\}}`

Explanation:

Let the number be x

Given condition:

x² = 4x - 3

Subtract 4x to both sides and add 3 to both sides

x² - 4x + 3 = 0

Using mid-term break

x² - 3x - x + 3 = 0

Take common

x(x-3) - 1(x-3) = 0

Take (x-3) common

(x - 3)(x - 1) = 0

Using zero's method

Either,

x - 3 = 0 OR x - 1 = 0

x = 3 OR x = 1

`\rule[225]{225}{2}`