Drag one or more expressions into each box to create an equation that is true for all values of x. (Assume no
denominator equals zero.)
3+4+2
4
+
1 + 2
Preset Choices:
X
x2
(x + 2)
x(x + 2)
x²(x + 2)

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.

could you provide figure.

answer: idk wbu

step-by-step explanation: