-4(2x - 9) is the same as which of the following? a
-8x + 36

b
-8x - 36

c
2x + 13

d
-2x - 13

help pls<3

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

How do i simply this radical expression?