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The formula I = PRT where I = Interest, P = principal, R = rate, and T = time is used to calculate the amount of simple interest earned. Solve this formula for T.

Verified Answer :

Noah11012

I = PRT
I\PR = T

I just divided both sides by PR.

Answer:

\(2a^2+2a-11\)

Step-by-step explanation:

Given,

\(C = 2a^2 - 5------(1)\)

\(D=3 - a-------(2)\)

Thus,  

\(C-2D = 2a^2 - 5-2(3 - a)\)  ( From equation (1) and (2) )

\(=2a^2 - 5 - 6 + 2a\)            ( By distribution property )

\(=2a^2+2a-11\)                      ( Combined constant )

Hence, C - 2D is equal to \(2a^2+2a-11\)