Binomial multiplication (foil) paper (x-2)(x-4)

Step-by-step explanation:

Given:

Binomial is .

In FOIL method, we first multiply the first term of each binomial. First terms are and .

⇒

Next, we multiply the outer terms. Outer terms are and -4.

⇒

Next, we multiply the inner terms. Inner terms are -2 and .

Lastly, we multiply the last terms of each binomial. Last terms are -2 and -4.

Now, we add all the results to get the answer.

Therefore,

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.