Question

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

Answer 1

Explanation:

f(x) × g(x)

= (x2 + 5x )× (3x2 -4x )

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

3x^4 + 11 x3 - 20x2

Answer 2

`\large \mathfrak{Solution : }`

f (x) = x² + 5x

g (x) = 3x² - 4x

f (x) * g (x) :

• 
  `( {x}^(2) + 5) * (3 {x}^(2) - 4x)`

• 
  `3x {}^(4) - 4 {x}^(3) + 15 {x}^(2) - 20x`