Question

Let f(x) = 5x + x2 and g(x) = 3x2 - 4x. Find f(x) * g(x)

Answer 1

$\large \mathfrak{Solution : }$

f (x) = x² + 5x

g (x) = 3x² - 4x

f (x) * g (x) :

• $( {x}^{2} + 5) \times (3 {x}^{2} - 4x)$

• $3x {}^{4} - 4 {x}^{3} + 15 {x}^{2} - 20x$

Answer 2

Step-by-step explanation:

f(x) × g(x)

= (x2 + 5x )× (3x2 -4x )

=3x4 + 15x3 - 4x3 -20x2

3x^4 + 11 x3 - 20x2