For what value of xis the rational expression below equal to zero? X-9
(x-4)(x + 4)
O A. 9
B. -9
O C. -4
D. 4

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

than do 23.50 times 18 and then divide your answer by 100 than you will get x.