N is a multiple of 5 A = N + 1
B = N – 1
Prove, using algebra, that A2 – B2 is always a multiple of 20

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?