1. 28 - 4sqrt2 = 24sqrt2.
24sqrt2 + 4sqrt2 = 28,
28sqrt2 = 28. Not True.
Divide both sides by 28:
sqrt2 = 1. NOT TRUE.
2. sqrt(a) and sqrt(b) can be added only if a = b. So the Eq is Not True.
3. a. The index is 2 for a sqrt radical
and 3 for a crt radical.
b. Yes, the radican can be neg. when
the index is odd.
c. No, the radican cannot be neg. when the index is even.
4a. 8sqrt48 - 5sqrt3 =
8sqrt(16*3) - 5sqrt3 =
8*4sqrt3 - 5sqrt3 =
32sqrt3 - 5sqrt3 =
Factor out 5sqrt3:
sqrt3(32-5) = 27sqrt3.
b. 21sqrt(-16) + 45sqrt2 =
21sqrt(16*-1) + 45sqrt2 =
21*4sqrt(-1) + 45sqrt2 =
84sqrt(-1) + 45sqrt2 =
Factor out 3:
3(28sqrt(-1) + 15sqrt2 =
3(28i + 15sqrt2).
5th math - Jackie ran 4 Miles in 28.5 minutes Which equation could be used to ...
Algebra - How do I solve this? The perimeter of a rectangular writing pad is 28 ...
algebra - please help me put this in algebra equation? baseball regular season =...
math - a newborn infant usually tripples its birthday weight by its first ...
math - (4,-2) and (2,-8) lie on the line Ax-2By = 28. What is the value of A? ...
math - WHAT IS 28 AS A DECIMAL AND PERCENT? umm...thats not possible....28=28.0...
algebra - did I do this right and if not can you please help me. Solve. 4(x + 7...
Statistics - How do you solve this? 28!/(28-28)!28! * 0.88^28 *0.12^28-28 I need...
algebra - solve the equation m-26/5-5m-28/6=2
Algebra - 3x^4-31x^2+28=0 Solve the equation??