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svet-max [94.6K]
4 years ago
6

Given that f(X)=2X-5, find the value of X that makes f(X)=15

Mathematics
2 answers:
I am Lyosha [343]4 years ago
8 0
 if f(x) = 15 then
15 = 2x - 5
20 = 2x
x = 10
amid [387]4 years ago
5 0
X=15 because 2(15) is 30-5 is 15
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Multiple polynomial the (x^3+3x^2+1)(3x^2+6x-2)​
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The product of given polynomials is: 3x^5+15x^4-16x^3-3x^2+6x-2

Step-by-step explanation:

Given polynomials are:

(x^3+3x^2+1)\\and\\(3x^2+6x-2)

In order to multiply both polynomials, we will use the distributive property

So,

= (x^3+3x^2+1)(3x^2+6x-2)\\=x^3(3x^2+6x-2)+3x^2(3x^2+6x-2)+1(3x^2+6x-2)\\=3x^5+6x^4-2x^3+9x^4+18x^3-6x^2+3x^2+6x-2

Combining like terms

=3x^5+6x^4+9x^4-2x^3+18x^3+3x^2-6x^2+6x-2\\=3x^5+15x^4-16x^3-3x^2+6x-2

Hence,

The product of given polynomials is: 3x^5+15x^4-16x^3-3x^2+6x-2

Keywords: Polynomials, variables

Learn more about polynomials at:

  • brainly.com/question/10435836
  • brainly.com/question/10541435

#LearnwithBrainly

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