Question

3x(x2 + 4)..........................................

Answer 1

`3x^(3) +12x`

Explanation:

STEP 1: Apply the distributive property.

`3x^(2) * x^(2) +3x*4`

STEP 2: Multiply
`x` by
`x^(2)` by adding the exponents.

`3x^3+3x*4`

STEP 3: Multiply
`4` by
`3`.

`3x^(3) +12x`

Answer 2

3x³ + 12x

Explanation:

3x(x² + 4) = 3x³ + 12x

When multiplying stuff in a bracket, multiply (3x) by (x²) first then multiply (3x) by (4). (3x × x² = 3x³)( 3x × 4 = 12x)

Tell me if you need it in factorised form.