Question

X2 + 8x + 15
what is the factored form

Answer 1

`x {}^(2) + 8x + 15`

`\implies \: x {}^(2) + 3x + 5x + 15`

`\implies \: x(x + 3) + 5(x + 3)`

`\implies \: (x + 5)( + 3)`

Answer 2

`{x}^(2) + 8x + 15 \\ {x}^(2) + 5x + 3x + 15 \\ x(x + 5) + 3(x + 5) \\ = (x + 3)(x + 5)`