Find the value of (x^2-5x + 4) if x = 7.

18 is the value of the equation when x = 7.

Step-by-step explanation:

x² - 5x + 4

If x = 7

Substitute for 'x' in the given equation.

7² - 5 (7) + 4

interpret the expression

(7x7) - 5 (7) + 4

Solve the brackets

49 - 35 + 4

Simplify further

18