Factor x3 – 4x2 + 7x – 28 by grouping. what is the resulting expression?
(x2 – 4)(x + 7)
(x2 + 4)(x – 7)
(x2 – 7)(x + 4)
(x2 + 7)(x – 4)

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

i think asking google will you get the answer to that question