3 years ago

If f(x)=2x+1 and g(x)=x-3 then g(f(x))= ?x + ?

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

6 0

Answer:

g(f(x)) = 2x - 2

Step-by-step explanation:

to evaluate g(f(x)) substitute x = f(x) into g(x)

g(f(x)) = g(2x + 1) = 2x + 1 - 3 = 2x - 2

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Given the trinomial, what is the value of the coefficient 'B' in the factored form?

Zepler [3.9K]

Answer:

B=9 (I'll solve right now, just so you get the answer)

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$2x^2+14xy-36y^2=2(x+By)(x-2y)$

Expand right side by distributing

$(2x+2By)(x-2y)$

Use the FOIL method to simplify (first, outside, inside, last):

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$(2x*x)+(2x*(-2y))+(2By*x)+(2By*(-2y))\\\\$

Simplify

$2x^2-4xy+2Byx-4By^2$

Re-insert

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Move all terms to one side

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