Can someone help me ​

30

Step-by-step explanation:

Given

f(x) = x² - x

Then

f(-5) = (-5)² - (-5)

= 25 + 5

= 30

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0