can one help me simplify each of these expressions
77.) (-j+8) 1/2
80.) (6y-1)1/4
81.) (24-24y)1/5
83.)1/3y+6-2/3y
84.)-ab^2-ab^2
and the / sign is meant for fractions not division

Question

can one help me simplify each of these expressions 
77.) (-j+8) 1/2
80.) (6y-1)1/4
81.) (24-24y)1/5
83.)1/3y+6-2/3y
84.)-ab^2-ab^2
 and the / sign is meant for fractions not division

anonymous · Answer

77.  1/2(-j+8) = 1/2j + 4                 You're basically distributing

80.  1/4(6y-1) = 3/2y-1/4

81.  1/5(24-24y)=(24/5)(1-y)

anonymous · Answer

do you have any clue to what 83 & 84 is?

anonymous · Answer

Hey :) Just do note, fractions is in fact division of the numerator by denominator so don't bother 'bout stating which.

83)y/3+(6-2)/y= y/3+4/y
Change the denominator by multiplying y/3 by y and 4/y by 3
Hence
 (y^2 +12)/3y

84)-ab^2-ab^2
Look at this another way
Ignore the negative, take it out and the equation becomes
-[(ab)^2 +(ab)^2]

Like a+a= 2a

Answer is -[2(ab)^2] :)