What is expand x(21-2x)(30-2x) ?

The solution to expand x(21-2x)(30-2x) is 630x-102x^2+4x^3

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expand x(21-2x)(30-2x)

expand

x (21 - 2 x) (30 - 2 x)

630 x - 102 x^{2} + 4 x^{3}

Solution steps

x (21 - 2 x) (30 - 2 x)

Expand

x (21 - 2 x) (30 - 2 x) : x (630 - 102 x + 4 x^{2})

= x (630 - 102 x + 4 x^{2})

Apply the distributive law:

m (a + b + c) = ma + mb + m c

x (630 - 102 x + 4 x^{2}) = x \cdot 630 + x (- 102 x) + x \cdot 4 x^{2}

= x \cdot 630 + x (- 102 x) + x \cdot 4 x^{2}

Simplify

x \cdot 630 + x (- 102 x) + x \cdot 4 x^{2} : 630 x - 102 x^{2} + 4 x^{3}

= 630 x - 102 x^{2} + 4 x^{3}

\frac{3}{4} \cdot (- 2)

\frac{( m ^{- 3} n ^{- 4} ) ^{8}}{( m ^{2} n ^{5} ) ^{- 7}}

\frac{y ^{2} - 16}{y + 4}

- 2 x \cdot x^{2}

(7 a - 1)^{2}

What is expand x(21-2x)(30-2x) ?
The solution to expand x(21-2x)(30-2x) is 630x-102x^2+4x^3