Please help. i only have a small amount of time. branliest to correct/best answer Subtract the linear expressions.

(2/5x−1)−(1/4x+2)

What is the difference?

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To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

What is the factored form of the following expressions? d^2 – 13d + 36

Ithink i know it but i want to be sure so can you me out ?