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Lostsunrise [7]
4 years ago
13

What is the product? (7x^2)(2x^3+5)(x^2-4x-9)

Mathematics
2 answers:
Masja [62]4 years ago
7 0
OK......
Your answer would be 
14x^7 - 56x^6 - 126x^5 + 35x^4 - 140x^3 - 315x^2

H0P3 It H3LPS :)
Hatshy [7]4 years ago
7 0

Answer:

(7x^2)(2x^3+5)(x^2-4x-9)=14x^7-56x^6-126x^5+35x^4-140x^3-315x^2

Step-by-step explanation:

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

To find : The product

Solution :

Product is the multiplication of one term to another.

Follow step by step

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

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

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

=(14x^5)(x^2-4x-9)+(35x^2)(x^2-4x-9)

=(14x^7-56x^6-126x^5)+(35x^4-140x^3-315x^2)

=14x^7-56x^6-126x^5+35x^4-140x^3-315x^2

Therefore, The product is

(7x^2)(2x^3+5)(x^2-4x-9)=14x^7-56x^6-126x^5+35x^4-140x^3-315x^2

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