What is expand pi(D+ΔD)^2 ?

The solution to expand pi(D+ΔD)^2 is piD^2+2piΔD^2+Δ^2piD^2

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expand pi(D+ΔD)^2

expand

π (D + Δ D)^{2}

π D^{2} + 2 π Δ D^{2} + Δ^{2} π D^{2}

Solution steps

π (D + Δ D)^{2}

(D + Δ D)^{2} = D^{2} + 2Δ D^{2} + Δ^{2} D^{2}

= π (D^{2} + 2Δ D^{2} + Δ^{2} D^{2})

Distribute parentheses

= π D^{2} + π 2Δ D^{2} + π Δ^{2} D^{2}

= π D^{2} + 2 π Δ D^{2} + Δ^{2} π D^{2}

(x - 1) e^{x} x^{'}

1 + 2 x + 3 x

\frac{x - 7}{( x - 1 ) ( x + 1 )}

\frac{3 b}{( s + 2 ) ( s ^{2} + 6 s + 8 )}

d (10 - 10 e^{- 2 t})

What is expand pi(D+ΔD)^2 ?
The solution to expand pi(D+ΔD)^2 is piD^2+2piΔD^2+Δ^2piD^2