(x+7)(x+4) Please Help

x^2 + 11 x + 28

Step-by-step explanation:

Expand the following:

(x + 4) (x + 7)

(x + 4) (x + 7) = (x) (x) + (x) (7) + (4) (x) + (4) (7):

x x + 7 x + 4 x + 4 7

x x = x^2:

x^2 + 7 x + 4 x + 4 7

4×7 = 28:

x^2 + 7 x + 4 x + 28

7 x + 4 x = 11 x:

x^2 + 11 x + 28

Multiply each term in each set of parentheses by each one:

X * x = x^2

X * 4 = 4x

7 * x = 7x

7 * 4 = 28

Combine to get x^2 + 11x + 28

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )