Question

How do you factor: pi r^2 + pi rl

Answer 1

Since ll is on the right side of the equation, switch the sides so it is on the left side of the equation.prl+pr2=sp⁢r⁢l+p⁢r2=sSince pr2p⁢r2 does not contain the variable to solve for, move it to the right side of the equation by subtracting pr2p⁢r2 from both sides.prl=−pr2+sp⁢r⁢l=-⁢p⁢r2+sDivide each term by prp⁢r and simplify.Divide each term in prl=−pr2+sp⁢r⁢l=-⁢p⁢r2+s by prp⁢r.prlpr=−pr2pr+sprp⁢r⁢lp⁢r=-⁢p⁢r2p⁢r+sp⁢rSimplify the left side of the equation by cancelling the common factors.l=−pr2pr+sprl=-⁢p⁢r2p⁢r+sp⁢rSimplify each term.
l=−r+spr