Question

(PLEASE HELP) Find the product of

(x+4)(x2+7x).

Answer 1

`\huge \underline{ \sf \: Solution}`

`(x + 4)( {x}^(2) + 7x) \\ = x( {x}^(2) + 7x) + 4( {x}^(2) + 7x) \\ = {x}^(3) + {7x}^(2) + {4x}^(2) + 28x \\ = {x}^(3) + {11x}^(2) + 28x`

`\huge\underline{\sf Answer:}`

`{x}^(3) + {11x}^(2) + 28x`

Answer 2

x³ + 11x² + 28x

Explanation:

(x + 4)(x² + 7x)

Each term in the second factor is multiplied by each term in the forst factor, that is

x(x² + 7x) + 4(x² + 7x) ← distribute parenthesis

= x³ + 7x² + 4x² + 28x ← collect like terms

= x³ + 11x² + 28x