Question

Select the correct answer.

Answer 1

Answer:

$\boxed{ \boxed{ \bold{ {x}^{2} + 4x - 21}}}$

Step-by-step explanation:

$\sf{(x - 3)(x + 7)}$

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.

⇒$\sf{x(x + 7) - 3(x + 7)}$

⇒$\sf{ {x}^{2} + 7x - 3x - 21}$

Collect like terms

⇒$\sf{ {x}^{2} + 4x - 21}$

Hope I helped!

Best regards!!

Answer 2

Answer:

$\boxed{\boxed{\boxed{\red{{x}^{2} + 4x - 21}}}}$

Step-by-step explanation:

$(x - 3)(x + 7) \\ x(x + 7) - 3(x + 7) \\ {x}^{2} + 7x - 3x - 21 \\ {x}^{2} + 4x - 21$