Root 64 is 8, if by root you mean the square root.
Then the problem become -square root 84(6+8) which
is the - square root of 84(14)
But square root of 84 is 2(square root of 21) so the final answer comes
from -2(square root 21)x14
which is -28square root (21)
negative read this : "MULTIPLICATION: minus times minus is plus (negative x negative = positive).....minus times plus is minus (negative x positive = negative).....plus times plus is plus (positive x positive = positive) DIVISION: minus divi minus is plus (negative ÷ negative = positive)......minus divi plus is minus (negative ÷ positive = negative).....plus divi plus is plus (positive ÷ positive = positive)"
4. i is just the imaginarY number used in an equatiOn, where there is a negative root (not possible to have a negative root) All yoU do is multiply the negative Root with a negative one, and you'll See your answer. absoluTe valUe turns any negative number into a Positive, even an Imaginary number. Do this and you'll be fine with your trigonometry!
Every number has two square roots ... a positive one and a negative one. Example: +2 and -2 are both square roots of 4, because when you multiply either of them by itself, the answer is 4. The positive square root of a number is the square root that's not negative. The non-negative square root of a number is the positive one.
[-1+sqrt(3)]1/4
8
The negative root is not defined because if you multiply two negative numbers together, the product is still positive. 2*2 =4 (-2)*(-2) =4 So, there is no real answer to the square root of a negative number. In higher math however, the square root of negative one is actually defined as i. The set of i is a set of imaginary numbers, and they have some special properties.
None, it involves the square root of a negative number so the roots are imaginary.
-4 + -5 + -2 + -1 = -12 (negative 12).
-3 + -7 + 5 + -4 + -6 = -15
No because the answers are 6 and 4 respectively.
It depends on whether you take the positive square root of 4 (YES) or the negative square root of 4 (No).
-8