Question

3 Evaluate (x+3)(x-7)​

Answer 1

Step-by-step explanation:

(x+3)(x-7)

x² + (3-7)x + (3)(-7)

x² -4x -21

[ using (x+a)(x+b) = x² +(a+b)x+ab ]

Hope it helps uhh ❤️

Answer 2

Answer:

x²-4x-21

Step-by-step explanation:

(x+3) (x+-7)

(x) (x) + (x-7) + (3)(x) +(3) (-7)

x²-7x+3x-21

x²-4x-21

hope it helps :)