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Korvikt [17]
2 years ago
15

Given f(x)=2x2−5x−3 and g(x)=2x2+x . What is (fg)(x) ?

Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
4 0

Answer:

fourth option

Step-by-step explanation:

note that (\frac{f}{g} )(x)x) = \frac{f(x)}{g(x)}

\frac{f(x)}{g(x)} = \frac{2x^2-5x-3}{2x^2+x} ← factorise numerator/ denominator

= \frac{(x-3)(2x+1)}{x(2x+1)} ← cancel the common factor (2x + 1)

= \frac{x-3}{x} where x ≠ 0, - \frac{1}{2}

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