Respuesta :

[tex](7x^{2})(2x^{3} +5)( x^{2} -4x-9) [/tex]
[tex](14 x^{5} +35 x^{2})( x^{2} -4x-9)[/tex]
=[tex]14 x^{7} -56 x^{6}-126 x^{5}+35 x^{4}-140 x^{3}-315 x^{2} [/tex]

Answer:

[tex]14x^7 -56x^6-126x^5+35x^4-140x^3-315x^2[/tex]

Step-by-step explanation:

(7x^2)(2x^3+5)(x^2-4x-9)

Find the product of [tex](7x^2)(2x^3+5)(x^2-4x-9)[/tex]

Multiply the parenthesis

[tex](7x^2)(2x^3+5)=14x^5+35x^2[/tex]

Now we multiply 14x^5+35x^2 inside last parenthesis

[tex]( 14x^5+35x^2)(x^2-4x-9)[/tex]

[tex]14x^7 -56x^6-126x^5+35x^4-140x^3-315x^2[/tex]

Combine like terms if any

[tex]14x^7 -56x^6-126x^5+35x^4-140x^3-315x^2[/tex]

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