Pls help this question is s hard. What is 6 x 5 x 55 x 55 x 55 x 87 x54 x 6 x 3 v 9 x 3 x 5 x 3 x 3 x tan(42) x sin(21) x 5 x 5 x 5 x 5 x 0 x 6 x 6 x 7 x 8 x 9 x 9 x 9 x 9 x 9 x 9 x 9 x9

Pls help asap

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.