Factor the expression. $$ x^{2}-3 x-28 $$ $$ x^{2}-3 x-28=\square $$ (Type your answer in factored

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Factor the expression $$ x^{2}-3x-28 $$.
Factor the expression by following steps:
- step0: Factor:
  $$x^{2}-3x-28$$
- step1: Rewrite the expression:
  $$x^{2}+\left(4-7ight)x-28$$
- step2: Calculate:
  $$x^{2}+4x-7x-28$$
- step3: Rewrite the expression:
  $$x	imes x+x	imes 4-7x-7	imes 4$$
- step4: Factor the expression:
  $$x\left(x+4ight)-7\left(x+4ight)$$
- step5: Factor the expression:
  $$\left(x-7ight)\left(x+4ight)$$
The factored form of the expression $$x^{2}-3x-28$$ is $$(x-7)(x+4)$$.
$$ x^{2}-3x-28 = (x-7)(x+4) $$

Factor the expression. \[ x^{2}-3 x-28 \] \( x^{2}-3 x-28=\square \) (Type your answer in factored

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