What is (-7m^2n^3)(3mn^9) ?

The solution to (-7m^2n^3)(3mn^9) is -21m^3n^{12}

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simplify (-7m^2n^3)(3mn^9)

simplify

(- 7 m^{2} n^{3}) (3 m n^{9})

- 21 m^{3} n^{12}

Solution steps

(- 7 m^{2} n^{3}) (3 m n^{9})

Apply rule:

(- a) = - a

(- 7 m^{2} n^{3}) = - 7 m^{2} n^{3}

= - 7 m^{2} n^{3} \cdot 3 m n^{9}

Multiply the numbers:

- 7 \cdot 3 = - 21

= - 21 m^{2} n^{3} m n^{9}

Simplify

m^{2} m : m^{3}

= - 21 m^{3} n^{3} n^{9}

Simplify

n^{3} n^{9} : n^{12}

= - 21 m^{3} n^{12}

(x^{2} - 2 x - 2) (2 x^{2} - 5 x + 2)

\frac{74}{100}

\frac{10}{28}

\frac{( a - \frac{3}{a} )}{( a + \frac{3}{a} )}

(y - 5 x)^{2}