What is expand-2er(-5e+4r+5er) ?

The solution to expand-2er(-5e+4r+5er) is 10e^2r-8er^2-10e^2r^2

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expand-2er(-5e+4r+5er)

expand

- 2 er (- 5 e + 4 r + 5 er)

10 e^{2} r - 8 e r^{2} - 10 e^{2} r^{2}

Solution steps

- 2 er (- 5 e + 4 r + 5 er)

Distribute parentheses

= (- 2 er) (- 5 e) + (- 2 er) \cdot 4 r + (- 2 er) \cdot 5 er

Apply minus-plus rules

(- a) (- b) = ab, + (- a) = - a

= 2 \cdot 5 eer - 2 \cdot 4 err - 2 \cdot 5 eerr

Simplify

2 \cdot 5 eer - 2 \cdot 4 err - 2 \cdot 5 eerr : 10 e^{2} r - 8 e r^{2} - 10 e^{2} r^{2}

= 10 e^{2} r - 8 e r^{2} - 10 e^{2} r^{2}

\frac{2401}{3 ( 7 s - 2 ) ^{3}}

- 11 + 10 (p + 10 = 4 - 5 (2 p + 11))

\frac{1}{( s + 1 ) ^{2} ( s - 5 )}

2 (3^{n - 1})

\frac{( 6 x - 1 ) ( x + 4 )}{2}

What is expand-2er(-5e+4r+5er) ?
The solution to expand-2er(-5e+4r+5er) is 10e^2r-8er^2-10e^2r^2