Take the 4 thru the parentheses for -12y+8x then group like terms for -12y-6y=-18y 2x+8x=10x to give you a new expression of 10x-18y
i don'd understand what you are asking...
Answer:
16
Step-by-step explanation:
sin 30=14/x
x=14*2
x=28
and
x=√{28²-14²}
x=14√3
x =121.42