What is expand ,4x^2-1+(2x+1)^2+x(2x+1) ?

The solution to expand ,4x^2-1+(2x+1)^2+x(2x+1) is 10x^2+5x

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expand ,4x^2-1+(2x+1)^2+x(2x+1)

expand

4 x^{2} - 1 + (2 x + 1)^{2} + x (2 x + 1)

10 x^{2} + 5 x

Solution steps

4 x^{2} - 1 + (2 x + 1)^{2} + x (2 x + 1)

Expand

(2 x + 1)^{2} : 4 x^{2} + 4 x + 1

= 4 x^{2} - 1 + 4 x^{2} + 4 x + 1 + x (2 x + 1)

Expand

x (2 x + 1) : 2 x^{2} + x

= 4 x^{2} - 1 + 4 x^{2} + 4 x + 1 + 2 x^{2} + x

Simplify

4 x^{2} - 1 + 4 x^{2} + 4 x + 1 + 2 x^{2} + x : 10 x^{2} + 5 x

= 10 x^{2} + 5 x

\frac{1}{2} (e^{\frac{t}{2}} + e^{- \frac{t}{2}})

f^{'} (2) (5 + ∣ x - 2 ∣)

δ, (x - 2)

π (x)^{2} (3 x + 1)

x \cdot x^{2}

What is expand ,4x^2-1+(2x+1)^2+x(2x+1) ?
The solution to expand ,4x^2-1+(2x+1)^2+x(2x+1) is 10x^2+5x