How do you solve 2^x=64? | Socratic
2016年10月16日 · 2x = 64 Just in case your teacher wants you to solve this the fancy way... log2x = log64aaaTake the log of both sides xlog2 = log64aaaUse the log rule logxa = alogx xlog2 log2 = log64 log2 aaaDivide both sides by log2 x = 6 Or, if you're not allowed to use a calculator... log22x = log264 xlog22 = log264 xlog22 log22 = log264 log22 log264 = 6 because the answer to a log …
How do you solve x^2 = 64? | Socratic
2015年11月1日 · [1] x2 = 64 Subtract 64 from both sides. [2] x2 − 64 = 64 − 64 [3] x2 − 64 = 0 Factor out the quadratic equation. This is a special product (difference of two squares). [4] (x +8)(x − 8) = 0 [5] x = − 8 or x = 8
How do you factor the expression x^2 - 64? | Socratic
2018年6月19日 · Given: x2 −64. Notice how 64 = 82. = x2 −82 Use the difference of squares property, which states that a2 − b2 = (a − b)(a +b). Letting x = a,b = 8, we get: = (x −8)(x + 8)
How do you factor completely x^2 - 16x + 64? | Socratic
2016年7月2日 · The expression is a quadratic trinomial which is a product of two brackets.. (x ±?)(x ±?) In x2 −16x + 64 Find the factors of 64 which ADD up to 16. The signs in the brackets will be THE SAME, Both will be MINUS. 8 × 8 = 64 and 8 …
How do you evaluate sqrt (64 + x^2)/x? - x^2)/x? | Socratic
2018年1月18日 · Thus: I = 8sectheta - 8ln|csctheta + cottheta| + C From our initial substitution, we know that tantheta = x/8. Therefore, if we were to draw a right triangle we would find the hypotenuse to be sqrt (x^2 + 8^2) = sqrt (x^2 + 64).
How do you factor 64x ^2 - 49? | Socratic
2016年5月28日 · It is 64x2 −49 = (8x)2 −72 = (8x − 7) ⋅ (8x + 7)It is 64x^2-49= (8x)^2-7^2= (8x-7)* (8x+7)
How do you solve x²-64=0? | Socratic
2015年6月7日 · How do you solve x² − 64 = 0?x^2-64=0 x^2 = 64 x=+-8
How do you factor x^6 - 64? | Socratic
2015年4月15日 · This is a bit of a tricky question. If you write x6 −64 = (x2)3 −43 you can factor it into: (x +2)(x − 2)(x4 +4x2 + 16) If you write: x6 −64 = (x3)2 − 82 , then you factor as (x3 + 8)(x3 − 8) which can be further factored as: (x +2)(x2 −2x + 4)(x −2)(x2 + 2x + 4) The second answer is factored into irreducibles (over R).
SOLUTION: Find the domain and range of the function: f (x)= sqrt …
Question 630765: Find the domain and range of the function: f (x)= sqrt (64-x^2) for the domain i got (-8,8) and range (1,8) Answer by dfrazzetto (283) (Show Source):
How do you factor the expression 64x^2 + 81? | Socratic
2016年2月27日 · If x is any Real number then x2 ≥ 0. Hence 64x2 + 81 ≥ 81> 0. As a result 64x2 +81 has no linear factors with Real coefficients. We can do something with Complex coefficients... First notice that 64x2 = (8x)2 and 81 = 92 The difference of squares identity can be written: a2 −b2 = (a −b)(a +b) The imaginary unit i has the property that ...